Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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509 FZUS53 KGRB 091958 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 158 PM CST Tue Dec 9 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-100300- 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- 158 PM CST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT CST TONIGHT THROUGH WEDNESDAY AFTERNOON... .THIS AFTERNOON...W wind 10 to 15 kts. Mostly cloudy. Waves 2 ft or less. .TONIGHT...SE wind 5 to 10 kts becoming NE 15 to 25 kts with gusts to around 30 kts after midnight. Snow. Waves 1 to 3 ft building to 3 to 5 ft early in the morning. .WEDNESDAY...N wind 15 to 25 kts with gusts to around 30 kts. Cloudy in the morning then becoming partly sunny. Waves 4 to 7 ft subsiding to 3 to 5 ft in the afternoon. .WEDNESDAY NIGHT...NW wind 15 to 25 kts with gusts to around 30 kts. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. $$ LMZ541-100300- Rock Island Passage to Sturgeon Bay WI- 158 PM CST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT CST TONIGHT THROUGH WEDNESDAY AFTERNOON... .THIS AFTERNOON...W wind 10 to 15 kts. Mostly cloudy. Waves 3 to 5 ft subsiding to 2 to 4 ft late. .TONIGHT...SE wind 5 to 10 kts becoming NE 15 to 25 kts with a few gusts to around 30 kts after midnight. Snow in the evening, then a chance of snow after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft late in the evening, then building to 2 to 4 ft after midnight building to 4 to 7 ft early in the morning. .WEDNESDAY...N wind 15 to 25 kts with gusts to around 30 kts. A chance of light snow in the morning. Waves 4 to 7 ft subsiding to 2 to 4 ft. .WEDNESDAY NIGHT...NW wind 15 to 25 kts with gusts to around 30 kts. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late evening and overnight. $$ LMZ542-543-100300- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 158 PM CST Tue Dec 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM MIDNIGHT CST TONIGHT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...W wind 10 to 15 kts with gusts to around 25 kts. A slight chance of light snow. Waves 2 to 4 ft subsiding to 1 to 3 ft late. .TONIGHT...SE wind 10 to 15 kts backing NE 15 to 25 kts with a few gusts to around 35 kts after midnight. Snow and a slight chance of rain. Waves 1 to 3 ft building to 4 to 7 ft. .WEDNESDAY...N wind to around 30 kts. Gusts to around 40 kts decreasing to 30 kts in the afternoon. A chance of light snow in the morning. Waves 5 to 8 ft subsiding to 3 to 5 ft. .WEDNESDAY NIGHT...NW wind 15 to 25 kts. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 3 ft in the late evening and overnight. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Friday through Sunday.