FZUS53 KGRB 240123
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
823 PM CDT Sun Aug 23 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-240400-
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-
823 PM CDT Sun Aug 23 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION FROM THIS EVENING THROUGH
MONDAY MORNING...

.TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to
1 to 3 ft after midnight. Partly cloudy in the evening then
clearing. 
.MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the
afternoon. Waves 1 to 3 ft. Mostly sunny. 
.MONDAY NIGHT...E wind 5 to 10 kts veering SE after midnight.
Waves 2 ft or less. Partly cloudy. 
.TUESDAY...S wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny.

$$

LMZ541>543-240400-
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
823 PM CDT Sun Aug 23 2026

.TONIGHT...N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy in
the evening then clearing. 
.MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the
afternoon. Waves 2 ft or less. Mostly sunny. 
.MONDAY NIGHT...E wind 5 to 10 kts veering SW after midnight.
Waves 2 ft or less. Partly cloudy. 
.TUESDAY...S wind 10 to 15 kts. Waves 2 ft or less building to
2 to 4 ft in the afternoon. Mostly sunny.  

$$

See Lake Michigan Open Lake Forecast for Wednesday through Friday.