|
Home Return to list Ice Accretion Warning 0005 Issued by the Duluth Forecast Office
Action: New Issued At: 2026-02-22 01:48:40 218 WHUS73 KDLH 220747 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 147 AM CST Sun Feb 22 2026 LSZ150-222000- /O.NEW.KDLH.UP.W.0005.260222T0747Z-260223T1200Z/ /O.EXT.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Outer Apostle Islands Beyond 5 NM from Mainland- 147 AM CST Sun Feb 22 2026 ...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 6 AM CST MONDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. * WHERE...Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 6 AM CST Monday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ148-222000- /O.EXT.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Oak Point to Saxon Harbor WI- 147 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and waves up to 3 ft. * WHERE...Oak Point to Saxon Harbor WI. * WHEN...Until 6 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-222000- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1400Z/ Grand Portage to Grand Marais MN- 147 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST MONDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 8 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ141>144-222000- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 147 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...Northwest winds 10 to 15 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ145-146-222000- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 147 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft. * WHERE...Duluth MN to Port Wing WI and Port Wing to Sand Island WI. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-02-22 09:53:47 710 WHUS73 KDLH 221553 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 953 AM CST Sun Feb 22 2026 LSZ150-230400- /O.CON.KDLH.UP.W.0005.000000T0000Z-260223T1200Z/ /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Outer Apostle Islands Beyond 5 NM from Mainland- 953 AM CST Sun Feb 22 2026 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. * WHERE...Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 6 AM CST Monday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-230400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1400Z/ Grand Portage to Grand Marais MN- 953 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST MONDAY... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 8 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ141>144-230400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 953 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...North winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ148-230400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Oak Point to Saxon Harbor WI- 953 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft. * WHERE...Oak Point to Saxon Harbor WI. * WHEN...Until 6 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ145-146-230400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 953 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...North winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft. * WHERE...Duluth MN to Port Wing WI and Port Wing to Sand Island WI. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Huyck Action: Continued Issued At: 2026-02-22 21:09:37 410 WHUS73 KDLH 230309 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 909 PM CST Sun Feb 22 2026 LSZ150-231200- /O.CON.KDLH.UP.W.0005.000000T0000Z-260223T1200Z/ /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Outer Apostle Islands Beyond 5 NM from Mainland- 909 PM CST Sun Feb 22 2026 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, north winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft. * WHERE...Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 6 AM CST Monday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-231400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1400Z/ Grand Portage to Grand Marais MN- 909 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST MONDAY... * WHAT...North winds 10 to 20 kt with gusts up to 35 kt and waves up to 3 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 8 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ141>144-230600- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 909 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...North winds 10 to 15 kt with gusts up to 35 kt and waves 1 to 2 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ148-231200- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Oak Point to Saxon Harbor WI- 909 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...North winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 5 ft. * WHERE...Oak Point to Saxon Harbor WI. * WHEN...Until 6 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ145-146-230600- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 909 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * WHAT...North winds around 15 kt with gusts up to 25 kt and waves 2 to 4 ft. * WHERE...Duluth MN to Port Wing WI and Port Wing to Sand Island WI. * WHEN...Until midnight CST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ BJH Action: Continued Issued At: 2026-02-22 23:53:11 605 WHUS73 KDLH 230552 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 1152 PM CST Sun Feb 22 2026 LSZ141>144-230700- /O.EXP.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 1152 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT... $$ LSZ145-146-230700- /O.EXP.KDLH.SC.Y.0026.000000T0000Z-260223T0600Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 1152 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT... $$ LSZ150-231200- /O.CON.KDLH.UP.W.0005.000000T0000Z-260223T1200Z/ /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Outer Apostle Islands Beyond 5 NM from Mainland- 1152 PM CST Sun Feb 22 2026 ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, north winds 10 to 20 kt and waves 2 to 5 ft. * WHERE...Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 6 AM CST Monday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-231400- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1400Z/ Grand Portage to Grand Marais MN- 1152 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST MONDAY... * WHAT...North winds 15 to 25 kt and waves 1 to 2 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 8 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ148-231200- /O.CON.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Oak Point to Saxon Harbor WI- 1152 PM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...North winds 5 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft. * WHERE...Oak Point to Saxon Harbor WI. * WHEN...Until 6 AM CST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2026-02-23 05:52:08 149 WHUS73 KDLH 231151 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 551 AM CST Mon Feb 23 2026 LSZ150-231300- /O.EXP.KDLH.UP.W.0005.000000T0000Z-260223T1200Z/ /O.EXP.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Outer Apostle Islands Beyond 5 NM from Mainland- 551 AM CST Mon Feb 23 2026 ...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... $$ LSZ140-231300- /O.CAN.KDLH.SC.Y.0026.000000T0000Z-260223T1400Z/ Grand Portage to Grand Marais MN- 551 AM CST Mon Feb 23 2026 ...SMALL CRAFT ADVISORY IS CANCELLED... $$ LSZ148-231300- /O.EXP.KDLH.SC.Y.0026.000000T0000Z-260223T1200Z/ Oak Point to Saxon Harbor WI- 551 AM CST Mon Feb 23 2026 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS MORNING... $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||