FZUS53 KGRB 092030 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 330 PM CDT Thu Apr 9 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-100400- 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- 330 PM CDT Thu Apr 9 2026 .LATE THIS AFTERNOON...W wind 5 to 10 kts. Waves 2 ft or less. Partly sunny. .TONIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. A chance of light rain. A slight chance of light snow after midnight. .FRIDAY...N wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy in the morning then becoming partly cloudy. .FRIDAY NIGHT...SE wind 5 to 10 kts veering S in the late evening and overnight. Waves 2 ft or less. Clear. .SATURDAY...S wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ541-100400- Rock Island Passage to Sturgeon Bay WI- 330 PM CDT Thu Apr 9 2026 .LATE THIS AFTERNOON...W wind 5 to 10 kts. Waves 1 to 3 ft. Partly sunny. .TONIGHT...E wind 5 to 10 kts backing NE in the late evening and overnight. Waves 1 to 3 ft. A chance of light rain. A chance of light snow after midnight. .FRIDAY...N wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy in the morning then becoming partly cloudy. .FRIDAY NIGHT...S wind 5 to 10 kts veering SW after midnight. Waves 2 ft or less. Clear. .SATURDAY...S wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny in the morning then becoming partly cloudy. $$ LMZ542-543-100400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 330 PM CDT Thu Apr 9 2026 .LATE THIS AFTERNOON...W wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .TONIGHT...S wind 5 to 10 kts backing E, then backing N after midnight. Waves 2 ft or less. A chance of light rain. .FRIDAY...N wind 5 to 10 kts veering NE early in the afternoon. Waves 2 ft or less. Mostly cloudy in the morning then becoming partly cloudy. .FRIDAY NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Mostly clear. .SATURDAY...S wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.