FZUS53 KGRB 292100 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 400 PM CDT Sun Mar 29 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-300400- 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- 400 PM CDT Sun Mar 29 2026 .LATE THIS AFTERNOON...S wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .TONIGHT...S wind 10 to 15 kts veering W 5 to 10 kts after midnight. Waves 2 ft or less. Partly cloudy. .MONDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly sunny. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 2 ft or less. A chance of showers and thunderstorms. .TUESDAY...N wind 10 to 15 kts. Waves 2 ft or less. Rain showers likely. $$ LMZ541-300400- Rock Island Passage to Sturgeon Bay WI- 400 PM CDT Sun Mar 29 2026 .LATE THIS AFTERNOON...S wind 10 to 20 kts. Waves 3 to 5 ft. Partly cloudy. .TONIGHT...SW wind 10 to 15 kts veering W 5 to 10 kts after midnight. Waves 3 to 5 ft. Partly cloudy. .MONDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly sunny. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 3 to 5 ft. A chance of showers and thunderstorms. A Small Craft Advisory may be needed. .TUESDAY...NE wind 10 to 15 kts backing N early in the afternoon. Waves 2 to 4 ft. Rain showers likely. $$ LMZ542-543-300400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 400 PM CDT Sun Mar 29 2026 .LATE THIS AFTERNOON...S wind 10 to 20 kts. Waves 3 to 5 ft. Mostly sunny. .TONIGHT...S wind 10 to 15 kts veering SW 5 to 10 kts after midnight. Waves 3 to 5 ft. Mostly clear. .MONDAY...N wind 5 to 10 kts veering NE 10 to 15 kts in the late morning and afternoon. Waves 1 to 3 ft. Partly cloudy. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Rain showers likely and a chance of thunderstorms. .TUESDAY...NE wind 10 to 15 kts backing NW in the late morning and afternoon. Waves 2 to 4 ft. Rain showers and a chance of thunderstorms. $$ See Lake Michigan Open Lake Forecast for Wednesday through Friday. Wave height forecast is for ice free areas.