Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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645 FZUS53 KGRB 090829 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 329 AM CDT Thu Oct 9 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-091300- 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- 329 AM CDT Thu Oct 9 2025 .EARLY IN THE MORNING...S wind around 5 kts. Clear. Waves 2 ft or less. .TODAY...S wind 10 to 15 kts. Sunny. Waves 2 ft or less. .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers after midnight. Waves 1 to 3 ft building to 2 to 4 ft after midnight. A Small Craft Advisory may be needed. .FRIDAY...SW wind 10 to 20 kts veering W in the afternoon. Gusts to around 25 kts. A chance of rain showers in the morning, then rain showers likely in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon. .FRIDAY NIGHT...NW wind 10 to 20 kts veering N 10 to 15 kts after midnight. A chance of rain showers. Waves 1 to 3 ft. $$ LMZ541-091300- Rock Island Passage to Sturgeon Bay WI- 329 AM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING... .EARLY IN THE MORNING...SE wind around 5 kts. Mostly clear. Waves 2 ft or less. .TODAY...S wind 5 to 10 kts increasing to 10 to 20 kts in the afternoon. Mostly sunny. Waves 1 to 3 ft. .TONIGHT...SW wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers after midnight. Waves 3 to 5 ft. .FRIDAY...SW wind 15 to 25 kts veering W 10 to 20 kts in the afternoon. Light rain showers likely. Waves 4 to 7 ft. .FRIDAY NIGHT...NW wind 10 to 20 kts veering N 10 to 15 kts after midnight. Gusts to around 25 kts. A chance of rain showers. Waves 3 to 5 ft subsiding to 1 to 3 ft after midnight. $$ LMZ542-543-091300- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 329 AM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH FRIDAY EVENING... .EARLY IN THE MORNING...SE wind 5 to 10 kts. Clear. Waves 2 ft or less. .TODAY...SE wind 5 to 10 kts veering S 10 to 20 kts in the afternoon. Mostly sunny. Waves 1 to 3 ft. .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. A chance of rain showers after midnight. Waves 2 to 4 ft. .FRIDAY...SW wind 15 to 25 kts. A chance of rain showers. Waves 3 to 5 ft. .FRIDAY NIGHT...NW wind 10 to 20 kts. Gusts to around 25 kts in the evening. A chance of rain showers. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late evening and overnight. $$ See Lake Michigan Open Lake Forecast for Saturday through Monday.