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Small Craft Advisory 0052
Issued by the Green Bay Forecast Office

Action Issued Starts Expiration
New 2026-05-17 09:31:16 2026-05-17 09:30:00 2026-05-18 19:00:00
New 2026-05-17 09:31:16 2026-05-17 09:30:00 2026-05-20 01:00:00
Continued 2026-05-17 17:13:01 2026-05-20 01:00:00
Continued 2026-05-17 17:13:01 2026-05-18 19:00:00
Continued 2026-05-17 20:10:07 2026-05-20 01:00:00
Continued 2026-05-17 20:10:07 2026-05-20 01:00:00
Continued 2026-05-17 20:10:07 2026-05-18 19:00:00
Continued 2026-05-17 22:59:43 2026-05-18 19:00:00
Continued 2026-05-17 22:59:43 2026-05-20 01:00:00
Continued 2026-05-17 22:59:43 2026-05-20 01:00:00
Continued 2026-05-18 03:46:03 2026-05-20 01:00:00
Cancelled 2026-05-18 03:46:03 2026-05-18 19:00:00
Continued 2026-05-18 03:46:03 2026-05-20 01:00:00
Continued 2026-05-18 11:19:02 2026-05-20 01:00:00
Cancelled 2026-05-18 14:59:38 2026-05-20 01:00:00


Action: New
Issued At: 2026-05-17 09:31:16

702 
WHUS73 KGRB 171430
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
930 AM CDT Sun May 17 2026

LMZ521-522-180000-
/O.NEW.KGRB.SC.Y.0052.260517T1430Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
930 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt into
  this evening, then winds shift to the south and increase to 15
  to 20 kt late with gusts up to 25 kt late tonight into Monday
  evening. Waves as high as 2 to 3 feet on Monday. 

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of strongest wind gusts may 
  be erratic this afternoon as thunderstorms move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541>543-180000-
/O.NEW.KGRB.SC.Y.0052.260517T1430Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
930 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT WEDNESDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt into
  this evening, then winds shift to the south late tonight,
  increasing to 10 to 20 kt with gusts up to 30 kt and waves 5 to
  8 ft Monday through Tuesday evening.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of strongest wind gusts may 
  be erratic this afternoon as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

JLA


Action: New
Issued At: 2026-05-17 09:31:16

702 
WHUS73 KGRB 171430
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
930 AM CDT Sun May 17 2026

LMZ521-522-180000-
/O.NEW.KGRB.SC.Y.0052.260517T1430Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
930 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt into
  this evening, then winds shift to the south and increase to 15
  to 20 kt late with gusts up to 25 kt late tonight into Monday
  evening. Waves as high as 2 to 3 feet on Monday. 

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of strongest wind gusts may 
  be erratic this afternoon as thunderstorms move through. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541>543-180000-
/O.NEW.KGRB.SC.Y.0052.260517T1430Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
930 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT WEDNESDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt into
  this evening, then winds shift to the south late tonight,
  increasing to 10 to 20 kt with gusts up to 30 kt and waves 5 to
  8 ft Monday through Tuesday evening.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of strongest wind gusts may 
  be erratic this afternoon as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

JLA


Action: Continued
Issued At: 2026-05-17 17:13:01

012 
WHUS73 KGRB 172212
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
512 PM CDT Sun May 17 2026

LMZ521-522-180615-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
512 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt this evening,
  then winds shift to the south and increase to 15 to 20 kt late 
  tonight with gusts up to 25 kt into Monday evening. Waves as 
  high as 2 to 4 feet on Monday.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts 
  may be erratic into this evening as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541>543-180615-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
512 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt this 
  evening, then winds shift to the south late tonight, increasing 
  to 10 to 20 kt with gusts up to 30 kt and waves 5 to 8 ft Monday
  through Tuesday evening.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts 
  may be erratic into this evening as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

JLA


Action: Continued
Issued At: 2026-05-17 17:13:01

012 
WHUS73 KGRB 172212
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
512 PM CDT Sun May 17 2026

LMZ521-522-180615-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
512 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt this evening,
  then winds shift to the south and increase to 15 to 20 kt late 
  tonight with gusts up to 25 kt into Monday evening. Waves as 
  high as 2 to 4 feet on Monday.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts 
  may be erratic into this evening as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541>543-180615-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
512 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt this 
  evening, then winds shift to the south late tonight, increasing 
  to 10 to 20 kt with gusts up to 30 kt and waves 5 to 8 ft Monday
  through Tuesday evening.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts 
  may be erratic into this evening as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

JLA


Action: Continued
Issued At: 2026-05-17 20:10:07

550 
WHUS73 KGRB 180109
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
809 PM CDT Sun May 17 2026

LMZ542-543-180915-
/O.NEW.KGRB.MF.Y.0006.260518T0109Z-260518T0900Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
809 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 4 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

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.

&&

$$

LMZ521-522-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and waves
  1 to 3 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...South winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-05-17 20:10:07

550 
WHUS73 KGRB 180109
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
809 PM CDT Sun May 17 2026

LMZ542-543-180915-
/O.NEW.KGRB.MF.Y.0006.260518T0109Z-260518T0900Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
809 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 4 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

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.

&&

$$

LMZ521-522-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and waves
  1 to 3 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...South winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-05-17 20:10:07

550 
WHUS73 KGRB 180109
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
809 PM CDT Sun May 17 2026

LMZ542-543-180915-
/O.NEW.KGRB.MF.Y.0006.260518T0109Z-260518T0900Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
809 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 4 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

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.

&&

$$

LMZ521-522-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and waves
  1 to 3 ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...Until 7 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ541-180915-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
809 PM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...South winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...Until 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The direction of the strongest wind gusts
  may be erratic as thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-05-17 22:59:43

244 
WHUS73 KGRB 180359
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1059 PM CDT Sun May 17 2026

LMZ521-522-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts to 25 kts and waves 2 to 4
  ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 7 PM CDT Monday.

* 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.

&&

$$

LMZ541-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1/2 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts up to 25 kts and waves 4 to
  7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$

LMZ542-543-181200-
/O.EXT.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1/2 NM or less. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$
TSK


Action: Continued
Issued At: 2026-05-17 22:59:43

244 
WHUS73 KGRB 180359
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1059 PM CDT Sun May 17 2026

LMZ521-522-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts to 25 kts and waves 2 to 4
  ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 7 PM CDT Monday.

* 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.

&&

$$

LMZ541-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1/2 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts up to 25 kts and waves 4 to
  7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$

LMZ542-543-181200-
/O.EXT.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1/2 NM or less. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$
TSK


Action: Continued
Issued At: 2026-05-17 22:59:43

244 
WHUS73 KGRB 180359
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1059 PM CDT Sun May 17 2026

LMZ521-522-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts to 25 kts and waves 2 to 4
  ft.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 7 PM CDT Monday.

* 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.

&&

$$

LMZ541-181200-
/O.EXB.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1/2 NM. For the Small Craft Advisory,
  south winds 10 to 20 kts with gusts up to 25 kts and waves 4 to
  7 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sturgeon Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$

LMZ542-543-181200-
/O.EXT.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1059 PM CDT Sun May 17 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1/2 NM or less. For the Small Craft Advisory, 
  south winds 10 to 20 kt with gusts up to 25 kt and waves 4 to 7 
  ft.

* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to 
  Sheboygan.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT Monday. For 
  the Small Craft Advisory, until 1 AM CDT Wednesday.

* 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.

&&

$$
TSK


Action: Continued
Issued At: 2026-05-18 03:46:03

488 
WHUS73 KGRB 180845
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
345 AM CDT Mon May 18 2026

LMZ521-522-181645-
/O.CAN.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.NEW.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, west
  winds 15 to 20 kts with gusts up to 25 kts and waves 2 to 4 ft 
  expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, from 10 AM to 7 PM CDT 
  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.

&&

$$

LMZ543-181645-
/O.CAN.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Two Rivers to Sheboygan WI-
345 AM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...
...DENSE FOG ADVISORY IS CANCELLED...

* WHAT...South winds 10 to 20 kts with gusts to 25 kts veering
  west on Tuesday. Waves 3 to 5 ft increasing to 4 to 7 ft late
  tonight into Tuesday.

* WHERE...Lake Michigan nearshore waters from Two Rivers to 
  Sheboygan.

* WHEN...Until 1 AM CDT 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.

&&

$$

LMZ541-542-181645-
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1 NM or less. For the Small Craft Advisory, south
  winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday.
  Waves 3 to 5 ft increasing to 4 to 7 ft late tonight into
  Tuesday.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Two Rivers.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, until 1 AM CDT 
  Wednesday.

* 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.

&&

$$
Kieckbusch


Action: Cancelled
Issued At: 2026-05-18 03:46:03

488 
WHUS73 KGRB 180845
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
345 AM CDT Mon May 18 2026

LMZ521-522-181645-
/O.CAN.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.NEW.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, west
  winds 15 to 20 kts with gusts up to 25 kts and waves 2 to 4 ft 
  expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, from 10 AM to 7 PM CDT 
  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.

&&

$$

LMZ543-181645-
/O.CAN.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Two Rivers to Sheboygan WI-
345 AM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...
...DENSE FOG ADVISORY IS CANCELLED...

* WHAT...South winds 10 to 20 kts with gusts to 25 kts veering
  west on Tuesday. Waves 3 to 5 ft increasing to 4 to 7 ft late
  tonight into Tuesday.

* WHERE...Lake Michigan nearshore waters from Two Rivers to 
  Sheboygan.

* WHEN...Until 1 AM CDT 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.

&&

$$

LMZ541-542-181645-
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1 NM or less. For the Small Craft Advisory, south
  winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday.
  Waves 3 to 5 ft increasing to 4 to 7 ft late tonight into
  Tuesday.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Two Rivers.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, until 1 AM CDT 
  Wednesday.

* 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.

&&

$$
Kieckbusch


Action: Continued
Issued At: 2026-05-18 03:46:03

488 
WHUS73 KGRB 180845
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
345 AM CDT Mon May 18 2026

LMZ521-522-181645-
/O.CAN.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.NEW.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory, west
  winds 15 to 20 kts with gusts up to 25 kts and waves 2 to 4 ft 
  expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, from 10 AM to 7 PM CDT 
  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.

&&

$$

LMZ543-181645-
/O.CAN.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Two Rivers to Sheboygan WI-
345 AM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...
...DENSE FOG ADVISORY IS CANCELLED...

* WHAT...South winds 10 to 20 kts with gusts to 25 kts veering
  west on Tuesday. Waves 3 to 5 ft increasing to 4 to 7 ft late
  tonight into Tuesday.

* WHERE...Lake Michigan nearshore waters from Two Rivers to 
  Sheboygan.

* WHEN...Until 1 AM CDT 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.

&&

$$

LMZ541-542-181645-
/O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-
345 AM CDT Mon May 18 2026

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1 NM or less. For the Small Craft Advisory, south
  winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday.
  Waves 3 to 5 ft increasing to 4 to 7 ft late tonight into
  Tuesday.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Two Rivers.

* WHEN...For the Dense Fog Advisory, until 9 AM CDT this 
  morning. For the Small Craft Advisory, until 1 AM CDT 
  Wednesday.

* 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.

&&

$$
Kieckbusch


Action: Continued
Issued At: 2026-05-18 11:19:02

032 
WHUS73 KGRB 181618
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1118 AM CDT Mon May 18 2026

LMZ541>543-190030-
/O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1118 AM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...South winds 10 to 20 kts with gusts to 25 kts veering
  west on Tuesday. Waves 3 to 5 ft increasing to 4 to 6 ft late 
  tonight into Tuesday.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...Until 1 AM CDT 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.

&&

$$

LMZ521-522-190030-
/O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
1118 AM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt
  shifting northwest Tuesday afternoon. Waves 1 to 3 ft expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...From 10 AM to 7 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.

&&

$$

JLA


Action: Cancelled
Issued At: 2026-05-18 14:59:38

659 
WHUS73 KGRB 181958
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
258 PM CDT Mon May 18 2026

LMZ541>543-190400-
/O.CAN.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
/O.EXB.KGRB.SC.Y.0053.260519T0600Z-260520T0600Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
258 PM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TUESDAY TO 1 AM CDT
WEDNESDAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt,
  veering northwest Tuesday afternoon. Waves 3 to 6 ft expected.

* WHERE...Lake Michigan nearshore waters from Washington Island 
  to Sheboygan.

* WHEN...From 1 AM Tuesday to 1 AM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Patchy fog may be dense at times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ521-522-190400-
/O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
258 PM CDT Mon May 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...

* WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 
  1 to 2 ft expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...From 10 AM to 7 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.

&&

$$

JLA



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