Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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906 FZUS53 KGRB 171057 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 557 AM CDT Fri Oct 17 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-172000- 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- 557 AM CDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...S wind 15 to 25 kts with gusts to around 30 kts. A slight chance of rain showers in the morning. Waves 1 to 3 ft building to 2 to 4 ft late in the afternoon. .TONIGHT...SW wind 10 to 20 kts. Gusts to around 30 kts in the evening. A chance of rain showers and a slight chance of thunderstorms. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. .SATURDAY...SW wind 5 to 10 kts. Partly cloudy. Waves 2 ft or less. .SATURDAY NIGHT...SW wind 5 to 10 kts veering N 10 to 20 kts after midnight. A chance of rain showers in the evening, then rain showers likely after midnight. Waves 1 to 3 ft. $$ LMZ541-172000- Rock Island Passage to Sturgeon Bay WI- 557 AM CDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON... .TODAY...S wind 15 to 25 kts with gusts to around 30 kts. A slight chance of rain showers in the morning. Waves 4 to 7 ft building to 6 to 10 ft. .TONIGHT...SW wind 15 to 25 kts with gusts to around 30 kts. A chance of light showers and thunderstorms. Waves 6 to 10 ft subsiding to 4 to 7 ft. .SATURDAY...SW wind 5 to 10 kts. A chance of rain showers. Waves 3 to 5 ft subsiding to 1 to 3 ft. .SATURDAY NIGHT...SW wind 5 to 10 kts veering N 10 to 20 kts after midnight. A chance of rain showers in the evening, then rain showers likely after midnight. Waves 1 to 3 ft. $$ LMZ542-543-172000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 557 AM CDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON... .TODAY...S wind 15 to 25 kts with gusts to around 30 kts. A slight chance of rain showers in the morning. Waves 4 to 7 ft building to 5 to 8 ft late in the afternoon. .TONIGHT...SW wind 15 to 25 kts. A chance of light showers in the evening. A chance of thunderstorms. Light showers likely after midnight. Waves 5 to 8 ft subsiding to 3 to 5 ft. .SATURDAY...SW wind 5 to 10 kts. A chance of rain showers. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. .SATURDAY NIGHT...SW wind 5 to 10 kts veering NW 10 to 20 kts with gusts to around 25 kts after midnight. A chance of rain showers in the evening, then rain showers likely after midnight. Waves 1 to 3 ft. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday.