Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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390 FZUS53 KGRB 100008 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 708 PM CDT Thu Oct 9 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-100800- 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- 708 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH SATURDAY MORNING... .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 ft building to 2 to 4 ft after midnight. .FRIDAY...SW wind 10 to 20 kts veering W in the afternoon. Gusts to around 25 kts. A slight chance of thunderstorms in the morning. A chance of rain showers. Waves 2 to 4 ft. .FRIDAY NIGHT...NW wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers in the evening. Waves 1 to 3 ft building to 2 to 4 ft after midnight. .SATURDAY...N wind 10 to 20 kts veering NE 5 to 10 kts in the afternoon. Partly sunny. Waves 1 to 3 ft. $$ LMZ541-100800- Rock Island Passage to Sturgeon Bay WI- 708 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH SATURDAY MORNING... .TONIGHT...SW wind 10 to 20 kts. Gusts to around 25 kts increasing to 30 kts after midnight. A chance of rain showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 ft building to 4 to 7 ft. .FRIDAY...SW wind 15 to 25 kts veering W in the afternoon. Gusts to around 30 kts. Light rain showers likely and a slight chance of thunderstorms in the morning, then a chance of rain showers in the afternoon. Waves 4 to 7 ft subsiding to 3 to 5 ft late in the afternoon. .FRIDAY NIGHT...NW wind 15 to 25 kts veering N 10 to 20 kts after midnight. A chance of rain showers. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight. .SATURDAY...N wind 10 to 20 kts veering NE 5 to 10 kts in the afternoon. Mostly cloudy in the morning then becoming partly cloudy. Waves 1 to 3 ft. $$ LMZ542-543-100800- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 708 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH SATURDAY MORNING... .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers and a slight chance of thunderstorms after midnight. Waves 3 to 5 ft. .FRIDAY...SW wind 15 to 25 kts veering W 10 to 20 kts in the afternoon. A slight chance of thunderstorms in the morning. A chance of rain showers. Waves 4 to 7 ft subsiding to 3 to 5 ft late in the afternoon. .FRIDAY NIGHT...NW wind 10 to 20 kts with gusts to around 25 kts. Mostly clear in the evening then becoming mostly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late evening and overnight. .SATURDAY...NE wind 10 to 20 kts. Partly sunny. Waves 1 to 3 ft. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday.