Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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494 FZUS53 KGRB 210559 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1259 AM CDT Thu Aug 21 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-211300- 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- 1259 AM CDT Thu Aug 21 2025 .OVERNIGHT...NE wind 5 to 10 kts. Patchy fog after midnight. Waves 2 ft or less. .TODAY...NE wind around 5 kts veering S in the afternoon. Patchy fog in the morning. Waves 2 ft or less. .TONIGHT...SW wind 5 to 10 kts. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 5 to 10 kts. Partly cloudy. Waves 2 ft or less. $$ LMZ541-211300- Rock Island Passage to Sturgeon Bay WI- 1259 AM CDT Thu Aug 21 2025 .OVERNIGHT...NE wind 5 to 10 kts. Patchy fog after midnight. Waves 2 ft or less. .TODAY...NE wind 5 to 10 kts veering S in the afternoon. Patchy fog in the morning. Waves 2 ft or less. .TONIGHT...SW wind 5 to 10 kts. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 5 to 10 kts. Partly cloudy. Waves 2 ft or less. $$ LMZ542-543-211300- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1259 AM CDT Thu Aug 21 2025 .OVERNIGHT...NE wind 5 to 10 kts. Patchy fog after midnight. Waves 1 to 3 ft. .TODAY...E wind 5 to 10 kts. Partly cloudy in the morning then clearing. Waves 2 ft or less. .TONIGHT...W wind around 5 kts backing SW after midnight. Mostly clear. Waves 2 ft or less. .FRIDAY...SW wind 5 to 10 kts. Partly cloudy. Waves 2 ft or less. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday.