FZUS53 KGRB 210229

NSHGRB



Nearshore Marine Forecast

National Weather Service Green Bay WI

929 PM CDT Mon Apr 20 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ521-522-211000-

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-

929 PM CDT Mon Apr 20 2026



...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...



.REST OF TONIGHT...S wind 15 to 25 kts decreasing to 10 to 15 kts

after midnight. Waves 3 to 5 ft subsiding to 1 to 3 ft after

midnight. Mostly cloudy early in the evening then becoming partly

cloudy. 

.TUESDAY...SW wind 5 to 10 kts backing E early in the afternoon.

Waves 2 ft or less. Sunny.

.TUESDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Clear.

.WEDNESDAY...NE wind 5 to 10 kts veering SE in the late morning

and afternoon. Waves 2 ft or less. Sunny. 



$$



LMZ541-211000-

Rock Island Passage to Sturgeon Bay WI-

929 PM CDT Mon Apr 20 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...



.REST OF TONIGHT...S wind to 30 kts decreasing to 10 to 20 kts

after midnight. Waves 4 to 7 ft. Mostly cloudy early in the

evening then becoming partly cloudy. 

.TUESDAY...S wind 10 to 15 kts backing SE 5 to 10 kts early in

the afternoon. Waves 4 to 7 ft subsiding to 3 to 5 ft in the

afternoon. Sunny.

.TUESDAY NIGHT...NE wind 5 to 10 kts. Waves 2 to 4 ft. Clear.

.WEDNESDAY...NE wind 5 to 10 kts veering E in the late morning

and afternoon. Waves 2 ft or less. Sunny. 



$$



LMZ542-543-211000-

Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-

929 PM CDT Mon Apr 20 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...



.REST OF TONIGHT...S wind 15 to 25 kts decreasing to 10 to 15 kts

after midnight. Waves 4 to 7 ft. Mostly cloudy early in the

evening then becoming partly cloudy. 

.TUESDAY...S wind 10 to 15 kts backing SE 5 to 10 kts early in

the afternoon. Waves 3 to 5 ft. Sunny.

.TUESDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Clear.

.WEDNESDAY...NE wind 5 to 10 kts veering E early in the

afternoon. Waves 2 ft or less. Sunny. 



$$



See Lake Michigan Open Lake Forecast for Thursday through Saturday.



Wave height forecast is for ice free areas.