National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 041931
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
131 PM CST Wed Mar 4 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ541-042300
Rock Island Passage to Sturgeon Bay WI
131 PM CST Wed Mar 4 2026

THIS AFTERNOON
S wind 5 to 10 kts. Waves 2 ft or less. Mostly sunny.

TONIGHT
S wind 5 to 10 kts backing NE after midnight. Waves 2 ft or less. Patchy fog.

THURSDAY
NE wind 10 to 20 kts. Waves 2 to 4 ft building to 3 to 5 ft in the afternoon. Patchy fog in the morning.

THURSDAY NIGHT
E wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Cloudy.

LMZ542-543-042300
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
131 PM CST Wed Mar 4 2026

THIS AFTERNOON
S wind 5 to 10 kts. Waves 2 ft or less. Mostly sunny.

TONIGHT
SE wind 5 to 10 kts backing NE after midnight. Waves 2 ft or less. Patchy fog.

THURSDAY
NE wind 10 to 15 kts. Waves 2 to 4 ft. Patchy fog in the morning. .

THURSDAY NIGHT
E wind 10 to 15 kts veering SE 5 to 10 kts in the late evening and overnight. Waves 2 to 4 ft. Cloudy.

See Lake Michigan Open Lake Forecast for Saturday through Monday.

Wave height forecast is for ice free areas.