FZUS53 KGRB 201110
NSHGRB

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

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-201600-
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-
610 AM CDT Wed May 20 2026

.TODAY...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.
.TONIGHT...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.
.THURSDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly
cloudy in the evening then becoming mostly cloudy.

$$

LMZ541-201600-
Rock Island Passage to Sturgeon Bay WI-
610 AM CDT Wed May 20 2026

.TODAY...NE wind 5 to 10 kts veering E 10 to 15 kts early in the
afternoon. Waves 2 ft or less. Mostly sunny.
.TONIGHT...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.
.THURSDAY NIGHT...E wind 10 to 15 kts. Waves 2 ft or less. Mostly
clear in the evening then becoming mostly cloudy.

$$

LMZ542-543-201600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
610 AM CDT Wed May 20 2026

.TODAY...N wind 10 to 15 kts veering NE in the late morning and
afternoon. Waves 1 to 3 ft. Mostly sunny.
.TONIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear.
.THURSDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.
.THURSDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly
cloudy in the evening then becoming mostly cloudy.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.