FZUS53 KGRB 200624
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
124 AM CDT Wed May 20 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-201000-
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-
124 AM CDT Wed May 20 2026

.REST OF THE NIGHT...NW wind 10 to 15 kts. Waves 2 ft or less.
Mostly cloudy. 
.WEDNESDAY...N wind 5 to 10 kts veering E 10 to 15 kts in the
late morning and afternoon. Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...E wind 10 to 15 kts. Waves 2 ft or less.
Mostly clear. 
.THURSDAY...NE wind 5 to 10 kts. Waves 2 ft or less. Partly
cloudy in the morning then becoming mostly sunny.  

$$

LMZ541-201000-
Rock Island Passage to Sturgeon Bay WI-
124 AM CDT Wed May 20 2026

.REST OF THE NIGHT...W wind 5 to 10 kts veering N 10 to 15 kts
after midnight. Waves 1 to 3 ft. Mostly cloudy. 
.WEDNESDAY...NE wind 5 to 10 kts veering E 10 to 15 kts early in
the afternoon. Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...NE wind 10 to 15 kts. Waves 2 ft or less.
Mostly clear. 
.THURSDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly
cloudy.  

$$

LMZ542-543-201000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
124 AM CDT Wed May 20 2026

.REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less.
Mostly cloudy. 
.WEDNESDAY...N wind 5 to 10 kts veering NE 10 to 15 kts in the
late morning and afternoon. Waves 2 ft or less. Mostly sunny. 
.WEDNESDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly
cloudy. 
.THURSDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.