367
WHUS73 KGRB 041555
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
955 AM CST Thu Dec 4 2025

LMZ521-541-050000-
/O.CON.KGRB.GL.W.0018.251205T0300Z-251205T1200Z/
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-
Rock Island Passage to Sturgeon Bay WI-
955 AM CST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
CST FRIDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 35 kt and
  waves 5 to 8 ft expected.

* WHERE...Lake Michigan nearshore waters from Washington Island
  to Sturgeon Bay, and Central Bay of Green Bay.

* WHEN...From 9 PM this evening to 6 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ522-050000-
/O.CON.KGRB.SC.Y.0093.251205T0200Z-251205T1500Z/
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
955 AM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 9 AM CST FRIDAY...

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

* WHERE...Southern Bay of Green Bay.

* WHEN...From 8 PM this evening to 9 AM CST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ542-543-050000-
/O.CON.KGRB.SC.Y.0093.251205T0200Z-251205T1500Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
955 AM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 9 AM CST FRIDAY...

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

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

* WHEN...From 8 PM this evening to 9 AM CST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$