FZUS53 KGRB 230933
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
433 AM CDT Sun Aug 23 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ522-231600-
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
433 AM CDT Sun Aug 23 2026

.EARLY THIS MORNING...NW wind 10 to 15 kts. Waves 1 to 3 ft.
Clear.
.TODAY...N wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny in
the morning then becoming partly cloudy. 
.TONIGHT...N wind 10 to 15 kts backing NW 5 to 10 kts after
midnight. Waves 1 to 3 ft. Clear.
.MONDAY...NW wind 5 to 10 kts. Waves 2 ft or less. Sunny in the
morning then becoming partly cloudy. 
.MONDAY NIGHT...SE wind around 5 kts veering SW after midnight.
Waves 2 ft or less. Partly cloudy.  

$$

LMZ521-231600-
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-
433 AM CDT Sun Aug 23 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.EARLY THIS MORNING...NW wind 10 to 20 kts. Waves 2 to 4 ft.
Clear.
.TODAY...NW wind 15 to 25 kts veering N 10 to 15 kts early in the
afternoon. Waves 2 to 4 ft. Mostly sunny in the morning then
becoming partly cloudy. 
.TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to
1 to 3 ft after midnight. Clear.
.MONDAY...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny. 
.MONDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly
cloudy.  

$$

LMZ542-543-231600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
433 AM CDT Sun Aug 23 2026

.EARLY THIS MORNING...NW wind 10 to 15 kts. Waves 2 ft or less.
Clear.
.TODAY...NW wind 10 to 20 kts. Waves 1 to 3 ft. Sunny in the
morning then becoming partly cloudy. 
.TONIGHT...N wind 10 to 15 kts backing NW after midnight. Waves
1 to 3 ft. Clear.
.MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny.
.MONDAY NIGHT...S wind 5 to 10 kts veering SW after midnight.
Waves 2 ft or less. Partly cloudy.  

$$

LMZ541-231600-
Rock Island Passage to Sturgeon Bay WI-
433 AM CDT Sun Aug 23 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.EARLY THIS MORNING...NW wind 15 to 25 kts. Waves 1 to 3 ft.
Clear.
.TODAY...N wind 15 to 25 kts. Waves 2 to 4 ft. A chance of
sprinkles in the afternoon. 
.TONIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Clear.
.MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny.
.MONDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly
cloudy.  

$$

See Lake Michigan Open Lake Forecast for Tuesday through Thursday.