FZUS53 KGRB 202036

NSHGRB



Nearshore Marine Forecast

National Weather Service Green Bay WI

336 PM CDT Fri Mar 20 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ521-522-210400-

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-

336 PM CDT Fri Mar 20 2026



.LATE THIS AFTERNOON...N wind 5 to 10 kts. Waves 2 ft or less.

Mostly sunny. 

.TONIGHT...NE wind 5 to 10 kts veering E after midnight. Waves

2 ft or less. A slight chance of light freezing rain after

midnight. 

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

cloudy. 

.SATURDAY NIGHT...S wind 5 to 10 kts veering N 10 to 15 kts in

the late evening and overnight. Waves 2 ft or less. Light rain

likely after midnight. 

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



$$



LMZ541-210400-

Rock Island Passage to Sturgeon Bay WI-

336 PM CDT Fri Mar 20 2026



.LATE THIS AFTERNOON...N wind 5 to 10 kts. Waves 2 ft or less.

Mostly sunny. 

.TONIGHT...N wind 5 to 10 kts veering NE after midnight. Waves

2 ft or less. A slight chance of light freezing rain after

midnight. 

.SATURDAY...SE wind 10 to 15 kts veering S early in the

afternoon. Waves 1 to 3 ft. Mostly cloudy. 

.SATURDAY NIGHT...S wind 5 to 10 kts veering NW, then veering N

10 to 15 kts after midnight. Waves 1 to 3 ft. Light rain likely

after midnight. 

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

Small Craft Advisory may be needed.  



$$



LMZ542-543-210400-

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

336 PM CDT Fri Mar 20 2026



.LATE THIS AFTERNOON...N wind 5 to 10 kts. Waves 2 ft or less.

Mostly sunny. 

.TONIGHT...NE wind 5 to 10 kts veering E after midnight. Waves

2 ft or less. Partly cloudy in the evening then becoming mostly

cloudy. 

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

4 ft in the afternoon. Partly sunny. 

.SATURDAY NIGHT...SW wind 5 to 10 kts veering NW, then veering N

10 to 15 kts after midnight. 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.  



$$



See Lake Michigan Open Lake Forecast for Monday through Wednesday.



Wave height forecast is for ice free areas.