


Marine Weather Message
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
609 WHUS73 KGRB 190145 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 845 PM CDT Sat Oct 18 2025 LMZ541>543-191000- /O.CON.KGRB.GL.W.0015.251019T1000Z-251019T2100Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 845 PM CDT Sat Oct 18 2025 ...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 4 PM CDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...From 5 AM to 4 PM CDT Sunday. * 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. && $$ LMZ521-522-191000- /O.CON.KGRB.SC.Y.0079.251019T1000Z-251020T0600Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 845 PM CDT Sat Oct 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM SUNDAY TO 1 AM CDT MONDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 6 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...From 5 AM Sunday to 1 AM CDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$