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Home Return to list Small Craft Advisory 0086 Issued by the Marquette Forecast Office
Action: New Issued At: 2026-05-18 14:35:23 823 WHUS73 KMQT 181935 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 335 PM EDT Mon May 18 2026 LMZ248-250-190745- /O.CAN.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 335 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-190745- /O.EXB.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, from 8 PM this evening to 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-190745- /O.NEW.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 335 PM EDT Mon May 18 2026 /235 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ264>266-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: New Issued At: 2026-05-18 14:35:23 823 WHUS73 KMQT 181935 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 335 PM EDT Mon May 18 2026 LMZ248-250-190745- /O.CAN.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 335 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-190745- /O.EXB.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, from 8 PM this evening to 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-190745- /O.NEW.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 335 PM EDT Mon May 18 2026 /235 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ264>266-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: New Issued At: 2026-05-18 14:35:23 823 WHUS73 KMQT 181935 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 335 PM EDT Mon May 18 2026 LMZ248-250-190745- /O.CAN.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 335 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-190745- /O.EXB.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, from 8 PM this evening to 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-190745- /O.NEW.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 335 PM EDT Mon May 18 2026 /235 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ264>266-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: New Issued At: 2026-05-18 14:35:23 823 WHUS73 KMQT 181935 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 335 PM EDT Mon May 18 2026 LMZ248-250-190745- /O.CAN.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 335 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-190745- /O.EXB.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, from 8 PM this evening to 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-190745- /O.NEW.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 335 PM EDT Mon May 18 2026 /235 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ264>266-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: New Issued At: 2026-05-18 14:35:23 823 WHUS73 KMQT 181935 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 335 PM EDT Mon May 18 2026 LMZ248-250-190745- /O.CAN.KMQT.SC.Y.0085.000000T0000Z-260520T0000Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 335 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...From 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.NEW.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-190745- /O.EXB.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.NEW.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, from 8 PM this evening to 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-190745- /O.NEW.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-190745- /O.NEW.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 335 PM EDT Mon May 18 2026 /235 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ264>266-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-190745- /O.EXT.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 335 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: Continued Issued At: 2026-05-18 18:18:00 130 WHUS73 KMQT 182317 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 717 PM EDT Mon May 18 2026 LMZ248-250-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile at times. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 1 PM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile at times. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 1 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-191130- /O.CON.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ264>266-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-191130- /O.CON.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 717 PM EDT Mon May 18 2026 /617 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-18 18:18:00 130 WHUS73 KMQT 182317 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 717 PM EDT Mon May 18 2026 LMZ248-250-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile at times. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 1 PM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile at times. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 1 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-191130- /O.CON.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ264>266-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-191130- /O.CON.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 717 PM EDT Mon May 18 2026 /617 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-18 18:18:00 130 WHUS73 KMQT 182317 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 717 PM EDT Mon May 18 2026 LMZ248-250-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile at times. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 1 PM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile at times. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 1 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-191130- /O.CON.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ264>266-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-191130- /O.CON.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 717 PM EDT Mon May 18 2026 /617 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-18 18:18:00 130 WHUS73 KMQT 182317 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 717 PM EDT Mon May 18 2026 LMZ248-250-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile at times. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 1 PM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile at times. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 1 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-191130- /O.CON.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ264>266-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-191130- /O.CON.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 717 PM EDT Mon May 18 2026 /617 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-18 18:18:00 130 WHUS73 KMQT 182317 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 717 PM EDT Mon May 18 2026 LMZ248-250-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile at times. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 1 PM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191130- /O.NEW.KMQT.MF.Y.0013.260518T2317Z-260519T1700Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile at times. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 1 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ244-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ /O.CON.KMQT.SC.Y.0086.260519T0600Z-260520T0000Z/ Eagle River to Manitou Island MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 5 ft expected. * WHERE...Eagle River to Manitou Island MI. * WHEN...For the Dense Fog Advisory, until 11 AM EDT Tuesday. For the Small Craft Advisory, from 2 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ245-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1500Z-260520T0000Z/ Manitou Island to Point Isabelle MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Manitou Island to Point Isabelle MI. * WHEN...For the Dense Fog Advisory, from 1 AM to 8 AM EDT Tuesday. For the Small Craft Advisory, from 11 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ248>251-191130- /O.CON.KMQT.MF.Y.0011.260519T0000Z-260519T1200Z/ /O.CON.KMQT.SC.Y.0086.260519T1400Z-260520T0000Z/ Huron Islands to Marquette MI-Marquette to Munising MI- Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Huron Islands to Marquette MI, Marquette to Munising MI, Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...For the Dense Fog Advisory, until 8 AM EDT Tuesday. For the Small Craft Advisory, from 10 AM to 8 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ246-247-191130- /O.CON.KMQT.MF.Y.0012.260519T0500Z-260519T1200Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ264>266-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1500Z/ Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 11 AM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ267-191130- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 717 PM EDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240>243-191130- /O.CON.KMQT.SC.Y.0086.260519T0900Z-260519T1800Z/ Saxon Harbor WI to Black River MI-Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 717 PM EDT Mon May 18 2026 /617 PM CDT Mon May 18 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM EDT /4 AM CDT/ TO 2 PM EDT /1 PM CDT/ TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 3 to 5 ft expected. * WHERE...Saxon Harbor WI to Black River MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance of Portage Canal MI and Upper Entrance of Portage Canal to Eagle River MI. * WHEN...From 5 AM EDT /4 AM CDT/ to 2 PM EDT /1 PM CDT/ Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:22:51 017 WHUS73 KMQT 191622 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1222 PM EDT Tue May 19 2026 LMZ248-250-200000- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T2000Z/ /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Seul Choix Point to Point Detour MI and 5NM East of a line from Fairport MI to Rock Island Passage. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ221-191800- /O.EXT.KMQT.MF.Y.0013.000000T0000Z-260519T1800Z/ Green Bay North of line from Cedar River MI to Rock Island Passage- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Green Bay North of line from Cedar River MI to Rock Island Passage. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ241-242-200000- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Black River to Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal MI. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ249-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Marquette to Munising MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-200430- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T2000Z/ Grand Marais to Whitefish Point MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 4 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ267-191800- /O.CON.KMQT.MF.Y.0011.000000T0000Z-260519T1800Z/ Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1222 PM EDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LSZ240-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Saxon Harbor WI to Black River MI- 1222 PM EDT Tue May 19 2026 /1122 AM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/ THIS AFTERNOON... * WHAT...West winds around 10 kt with gusts up to 15 kt and waves 3 to 5 ft occurring. * WHERE...Saxon Harbor WI to Black River MI. * WHEN...Until 2 PM EDT /1 PM CDT/ this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ243-191800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260519T1800Z/ Upper Entrance of Portage Canal to Eagle River MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves around 4 ft occurring. * WHERE...Upper Entrance of Portage Canal to Eagle River MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ244-245-200000- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ246-247-200000- /O.CON.KMQT.SC.Y.0086.260519T1800Z-260520T0000Z/ Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...West winds around 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-200430- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 1222 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2026-05-19 19:21:07 646 WHUS73 KMQT 200020 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 820 PM EDT Tue May 19 2026 LMZ248-250-LSZ241-242-244>247-200130- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below small craft criteria. $$ LSZ249-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201230- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP Action: Continued Issued At: 2026-05-19 19:21:08 646 WHUS73 KMQT 200020 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 820 PM EDT Tue May 19 2026 LMZ248-250-LSZ241-242-244>247-200130- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below small craft criteria. $$ LSZ249-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201230- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP Action: Time Extended Issued At: 2026-05-19 19:21:08 646 WHUS73 KMQT 200020 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 820 PM EDT Tue May 19 2026 LMZ248-250-LSZ241-242-244>247-200130- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below small craft criteria. $$ LSZ249-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201230- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP Action: Continued Issued At: 2026-05-19 19:21:08 646 WHUS73 KMQT 200020 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 820 PM EDT Tue May 19 2026 LMZ248-250-LSZ241-242-244>247-200130- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below small craft criteria. $$ LSZ249-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201230- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP Action: Time Extended Issued At: 2026-05-19 19:21:08 646 WHUS73 KMQT 200020 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 820 PM EDT Tue May 19 2026 LMZ248-250-LSZ241-242-244>247-200130- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T0000Z/ Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 820 PM EDT Tue May 19 2026 /720 PM CDT Tue May 19 2026/ ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below small craft criteria. $$ LSZ249-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201230- /O.EXT.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 6 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ248-200300- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T0300Z/ Huron Islands to Marquette MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 4 ft occurring. * WHERE...Huron Islands to Marquette MI. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201230- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 820 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT WEDNESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ TAP Action: Continued Issued At: 2026-05-20 02:34:23 978 WHUS73 KMQT 200734 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 334 AM EDT Wed May 20 2026 LSZ249-201500- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 7 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GS Action: Continued Issued At: 2026-05-20 02:34:23 978 WHUS73 KMQT 200734 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 334 AM EDT Wed May 20 2026 LSZ249-201500- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 7 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GS Action: Continued Issued At: 2026-05-20 02:34:23 978 WHUS73 KMQT 200734 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 334 AM EDT Wed May 20 2026 LSZ249-201500- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt and waves 2 to 5 ft occurring. * WHERE...Marquette to Munising MI. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ251-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Grand Marais to Whitefish Point MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and waves 4 to 7 ft occurring. * WHERE...Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LSZ250-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI- 334 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 6 ft occurring. * WHERE...Munising to Grand Marais MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GS Action: Continued Issued At: 2026-05-20 10:13:48 982 WHUS73 KMQT 201513 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1113 AM EDT Wed May 20 2026 LSZ249-201615- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 1113 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below Small Craft Advisory criteria. $$ LSZ250-251-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 1113 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2026-05-20 10:13:48 982 WHUS73 KMQT 201513 MWWMQT URGENT - MARINE WEATHER MESSAGE National Weather Service Marquette MI 1113 AM EDT Wed May 20 2026 LSZ249-201615- /O.EXP.KMQT.SC.Y.0086.000000T0000Z-260520T1500Z/ Marquette to Munising MI- 1113 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds and waves have fallen below Small Craft Advisory criteria. $$ LSZ250-251-201800- /O.CON.KMQT.SC.Y.0086.000000T0000Z-260520T1800Z/ Munising to Grand Marais MI-Grand Marais to Whitefish Point MI- 1113 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 3 to 4 ft occurring. * WHERE...Munising to Grand Marais MI and Grand Marais to Whitefish Point MI. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||