


Nearshore Marine Forecast
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
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494 FZUS53 KGRB 181124 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 624 AM CDT Mon Aug 18 2025 For waters within five nautical miles of the shore on Lake Michigan LMZ521-522-182000- 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- 624 AM CDT Mon Aug 18 2025 .TODAY...SE wind 10 to 20 kts. A chance of light showers in the morning, then light showers likely and a chance of thunderstorms in the afternoon. Waves 2 ft or less. .TONIGHT...SE wind 10 to 15 kts veering SW 5 to 10 kts after midnight. Patchy fog. Showers likely in the evening. A chance of thunderstorms. A chance of light showers after midnight. Waves 2 ft or less. .TUESDAY...NW wind 5 to 10 kts veering N in the afternoon. Partly sunny. Waves 2 ft or less. .TUESDAY NIGHT...N wind 10 to 20 kts. Partly cloudy. Waves 2 ft or less. $$ LMZ541-182000- Rock Island Passage to Sturgeon Bay WI- 624 AM CDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...SE wind 10 to 20 kts with gusts to around 25 kts. A slight chance of light showers in the morning, then light showers likely and a slight chance of thunderstorms in the afternoon. Waves 2 ft or less. .TONIGHT...S wind 10 to 20 kts. Showers likely in the evening. A chance of thunderstorms. A chance of light showers after midnight. Patchy fog after midnight. Waves 1 to 3 ft. .TUESDAY...W wind 5 to 10 kts veering N in the afternoon. Partly sunny. Waves 1 to 3 ft. .TUESDAY NIGHT...N wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft. $$ LMZ542-543-182000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 624 AM CDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .TODAY...SE wind 10 to 20 kts with gusts to around 25 kts. A chance of light showers. A chance of thunderstorms in the afternoon. Waves 2 ft or less. .TONIGHT...S wind 10 to 20 kts. Showers likely in the evening. A chance of thunderstorms. A chance of light showers after midnight. Patchy fog after midnight. Waves 1 to 3 ft. .TUESDAY...W wind 10 to 15 kts veering N in the afternoon. Partly sunny. Waves 1 to 3 ft. .TUESDAY NIGHT...N wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft. $$ See Lake Michigan Open Lake Forecast for Wednesday through Friday.