Coastal Waters Forecast for 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 (LMZ521) (Text-Only)
NWS Forecast for: 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 (LMZ521)
Issued by: National Weather Service Green Bay, WI
Last Update: 432 PM CST Wed Dec 3 2025
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Tonight: NW wind 10 to 20 kts with gusts to around 25 kts. A chance of flurries in the evening. Waves 3 to 5 ft.

Thursday: W wind 10 to 20 kts backing SW in the afternoon. Gusts to around 25 kts. Mostly sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft mid-day, then building to 2 to 4 ft late in the afternoon.

Thursday Night: SW wind to around 30 kts increasing to wind to 35 kts after midnight. Gusts to around 40 kts. Freezing spray. Waves 4 to 7 ft building to 5 to 8 ft after midnight, then subsiding to 4 to 7 ft early in the morning.

Friday: SW wind 15 to 25 kts. Gusts to around 30 kts in the morning. A chance of light snow. Waves 4 to 7 ft subsiding to 1 to 3 ft. A small craft advisory may be needed.







Zone Forecast: 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 (LMZ521)

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