Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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973 FZUS53 KGRB 220239 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 939 PM CDT Thu Aug 21 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-221000- 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- 939 PM CDT Thu Aug 21 2025 .REST OF THE NIGHT...SW wind 5 to 10 kts. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 10 to 20 kts. Partly cloudy. Waves 2 ft or less. .FRIDAY NIGHT...SW wind 5 to 10 kts. A chance of light showers and thunderstorms. Waves 2 ft or less. .SATURDAY...W wind 5 to 10 kts increasing to 10 to 20 kts in the afternoon. Mostly sunny. Waves 2 ft or less. $$ LMZ541-221000- Rock Island Passage to Sturgeon Bay WI- 939 PM CDT Thu Aug 21 2025 .REST OF THE NIGHT...SW wind 5 to 10 kts. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 10 to 15 kts. Partly cloudy. Waves 1 to 3 ft. .FRIDAY NIGHT...SW wind 10 to 15 kts. A chance of light showers and thunderstorms. Waves 1 to 3 ft. .SATURDAY...W wind 10 to 20 kts. Mostly sunny. Waves 2 ft or less. $$ LMZ542-543-221000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 939 PM CDT Thu Aug 21 2025 .REST OF THE NIGHT...SW wind 5 to 10 kts. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 10 to 15 kts. Partly cloudy. Waves 2 ft or less. .FRIDAY NIGHT...SW wind 5 to 10 kts. A chance of light showers. Waves 2 ft or less. .SATURDAY...W wind 10 to 20 kts. Mostly sunny. Waves 2 ft or less. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday.