FZUS53 KGRB 210856

NSHGRB



Nearshore Marine Forecast

National Weather Service Green Bay WI

356 AM CDT Sat Mar 21 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ521-522-211600-

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-

356 AM CDT Sat Mar 21 2026



.EARLY THIS MORNING...E wind 5 to 10 kts. Waves 2 ft or less.

Mostly cloudy. 

.TODAY...SE wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy.

.TONIGHT...NE wind 5 to 10 kts backing N 10 to 15 kts in the late

evening and overnight. Waves 2 ft or less. Patchy dense fog in

the evening. a chance of light rain after midnight. 

.SUNDAY...N wind 10 to 20 kts. Waves 2 ft or less. Mostly cloudy.

.SUNDAY NIGHT...N wind 10 to 15 kts. Waves 2 ft or less. Partly

cloudy.  



$$



LMZ541-211600-

Rock Island Passage to Sturgeon Bay WI-

356 AM CDT Sat Mar 21 2026



.EARLY THIS MORNING...E wind 5 to 10 kts. Waves 2 ft or less.

Mostly cloudy. 

.TODAY...S wind 10 to 15 kts. Waves 1 to 3 ft building to 2 to

4 ft in the afternoon. Mostly cloudy. 

.TONIGHT...S wind 5 to 10 kts veering N 10 to 15 kts in the late

evening and overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft

after midnight. A chance of light rain after midnight. 

.SUNDAY...N wind 15 to 25 kts. Waves 2 to 4 ft. Mostly cloudy. A

Small Craft Advisory may be needed. 

.SUNDAY NIGHT...N wind 10 to 20 kts decreasing to 5 to 10 kts

after midnight. Waves 2 to 4 ft. Partly cloudy.  



$$



LMZ542-543-211600-

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

356 AM CDT Sat Mar 21 2026



.EARLY THIS MORNING...SE wind 5 to 10 kts. Waves 2 ft or less.

Mostly cloudy. 

.TODAY...SE wind 10 to 15 kts veering S 15 to 25 kts mid-day,

then decreasing to 10 to 15 kts early in the afternoon. Waves

1 to 3 ft building to 3 to 5 ft in the afternoon. Mostly cloudy. 

.TONIGHT...W wind 10 to 15 kts veering N in the late evening and

overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight.

A chance of light rain after midnight. 

.SUNDAY...N wind 15 to 25 kts. Waves 4 to 7 ft. Mostly cloudy. A

Small Craft Advisory may be needed. 

.SUNDAY NIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts

after midnight. Waves 4 to 7 ft subsiding to 2 to 4 ft after

midnight. Partly cloudy.  



$$



See Lake Michigan Open Lake Forecast for Monday through Wednesday.



Wave height forecast is for ice free areas.