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Small Craft Advisory 0018
Issued by the Green Bay Forecast Office

Action Issued Starts Expiration
New 2026-02-21 13:24:21 2026-02-22 06:00:00 2026-02-23 15:00:00
Continued 2026-02-21 21:10:34 2026-02-22 06:00:00 2026-02-23 15:00:00
Continued 2026-02-22 02:05:41 2026-02-22 06:00:00 2026-02-23 15:00:00
Continued 2026-02-22 11:32:51 2026-02-23 15:00:00
Continued 2026-02-22 19:37:34 2026-02-23 15:00:00
Continued 2026-02-23 02:02:44 2026-02-23 15:00:00
Continued 2026-02-23 11:42:49 2026-02-23 15:00:00
Expired 2026-02-23 14:35:53 2026-02-23 15:00:00


Action: New
Issued At: 2026-02-21 13:24:21

541 
WHUS73 KGRB 211923
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
123 PM CST Sat Feb 21 2026

LMZ541>543-220330-
/O.NEW.KGRB.SC.Y.0018.260222T1200Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
123 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SUNDAY TO 3 PM CST
MONDAY...

* WHAT...North winds 20 to 30 kt and waves 3 to 6 ft expected.

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

* WHEN...From 6 AM Sunday to 3 PM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Kurimski


Action: Continued
Issued At: 2026-02-21 21:10:34

067 
WHUS73 KGRB 220310
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
910 PM CST Sat Feb 21 2026

LMZ541>543-221115-
/O.CON.KGRB.SC.Y.0018.260222T1200Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
910 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SUNDAY TO
3 PM CST MONDAY...

* WHAT...North winds 20 to 30 kts and waves 3 to 6 ft expected.

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

* WHEN...From 6 AM Sunday to 3 PM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Kruk


Action: Continued
Issued At: 2026-02-22 02:05:41

618 
WHUS73 KGRB 220805
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
205 AM CST Sun Feb 22 2026

LMZ541>543-221800-
/O.CON.KGRB.SC.Y.0018.260222T1200Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
205 AM CST Sun Feb 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING
TO 3 PM CST MONDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and 
  waves 3 to 6 ft expected.

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

* WHEN...From 6 AM this morning to 3 PM CST Monday.

* 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: 2026-02-22 11:32:51

260 
WHUS73 KGRB 221732
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1132 AM CST Sun Feb 22 2026

LMZ541>543-230145-
/O.CON.KGRB.SC.Y.0018.000000T0000Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1132 AM CST Sun Feb 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST MONDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and 
  waves 3 to 6 ft expected.

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

* WHEN...From 6 AM this morning to 3 PM CST Monday.

* 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: 2026-02-22 19:37:34

170 
WHUS73 KGRB 230137
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
737 PM CST Sun Feb 22 2026

LMZ541>543-231200-
/O.CON.KGRB.SC.Y.0018.000000T0000Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
737 PM CST Sun Feb 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST MONDAY...

* WHAT...North winds 15 to 25 kts with gusts up to 30 kts and
  waves 2 to 6 ft.

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

* WHEN...Until 3 PM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Kruk


Action: Continued
Issued At: 2026-02-23 02:02:44

422 
WHUS73 KGRB 230802
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
202 AM CST Mon Feb 23 2026

LMZ541>543-231800-
/O.CON.KGRB.SC.Y.0018.000000T0000Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
202 AM CST Mon Feb 23 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 5 ft.

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

* WHEN...Until 3 PM CST 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.

&&

$$

JLA


Action: Continued
Issued At: 2026-02-23 11:42:49

465 
WHUS73 KGRB 231742
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
1142 AM CST Mon Feb 23 2026

LMZ541>543-232100-
/O.CON.KGRB.SC.Y.0018.000000T0000Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1142 AM CST Mon Feb 23 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and 
  waves 1 to 4 ft.

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

* WHEN...Until 3 PM CST 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.

&&

$$

Kurimski


Action: Expired
Issued At: 2026-02-23 14:35:53

239 
WHUS73 KGRB 232035
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
235 PM CST Mon Feb 23 2026

LMZ541>543-232145-
/O.EXP.KGRB.SC.Y.0018.000000T0000Z-260223T2100Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
235 PM CST Mon Feb 23 2026

...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

Winds and waves have subsided.

$$



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