Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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946 FZUS53 KGRB 041800 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 100 PM CDT Sat Oct 4 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-050200- 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- 100 PM CDT Sat Oct 4 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH SUNDAY MORNING... .THIS AFTERNOON...S wind 10 to 20 kts. Sunny. Waves 1 to 3 ft. .TONIGHT...S wind 10 to 20 kts with a few gusts to around 25 kts. Clear. Waves 1 to 3 ft. A Small Craft Advisory may be needed. .SUNDAY...S wind 15 to 25 kts with gusts to around 30 kts. Sunny. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. .SUNDAY NIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts after midnight. A chance of light showers after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft early in the morning. $$ LMZ541-050200- Rock Island Passage to Sturgeon Bay WI- 100 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .THIS AFTERNOON...S wind 10 to 20 kts with gusts to around 25 kts. Sunny. Waves 2 to 4 ft building to 3 to 5 ft late. .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. Mostly clear. Waves 3 to 5 ft. .SUNDAY...S wind 15 to 25 kts with gusts to around 30 kts. Mostly sunny. Waves 3 to 5 ft building to 6 to 10 ft. .SUNDAY NIGHT...SW wind 15 to 25 kts with gusts to around 30 kts. A chance of light showers after midnight. Waves 6 to 10 ft subsiding to 4 to 7 ft. $$ LMZ542-543-050200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 100 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .THIS AFTERNOON...S wind 10 to 20 kts with gusts to around 25 kts. Sunny. Waves 3 to 5 ft. .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. Clear. Waves 3 to 5 ft. .SUNDAY...S wind 15 to 25 kts with gusts to around 30 kts. Sunny. Waves 2 to 4 ft building to 6 to 10 ft. .SUNDAY NIGHT...SW wind 15 to 25 kts. A chance of light showers after midnight. Waves 6 to 10 ft subsiding to 4 to 7 ft. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.