Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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669 FZUS53 KGRB 042303 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 603 PM CDT Sat Oct 4 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-050800- 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- 603 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... ...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH SUNDAY MORNING... .TONIGHT...S wind 10 to 20 kts with a few gusts to around 25 kts. Clear. Waves 1 to 3 ft. .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 late morning and afternoon. .SUNDAY NIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts after midnight. A chance of light showers and thunderstorms after midnight. Waves 3 to 5 ft subsiding to 1 to 3 ft. .MONDAY...NW wind 5 to 10 kts veering N in the afternoon. A chance of rain showers. Waves 2 ft or less. $$ LMZ541-050800- Rock Island Passage to Sturgeon Bay WI- 603 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...S wind 10 to 20 kts with gusts to around 25 kts. Clear. Waves 3 to 5 ft. .SUNDAY...S wind 15 to 25 kts with gusts to around 30 kts. Sunny. Waves 4 to 7 ft building to 5 to 8 ft. .SUNDAY NIGHT...SW wind 15 to 25 kts with gusts to around 30 kts. A chance of light showers after midnight. Waves 5 to 8 ft subsiding to 4 to 7 ft early in the morning. .MONDAY...NW wind 5 to 10 kts veering N in the afternoon. A chance of rain showers. Waves 4 to 7 ft subsiding to 1 to 3 ft. A Small Craft Advisory may be needed. $$ LMZ542-543-050800- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 603 PM CDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .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 5 to 8 ft. .SUNDAY NIGHT...SW wind 15 to 25 kts. Clear in the evening then becoming mostly cloudy. Waves 5 to 8 ft subsiding to 4 to 7 ft. .MONDAY...W wind 5 to 10 kts veering N in the afternoon. Light rain showers likely in the morning, then a chance of rain showers in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday.