866
FZUS53 KGRB 202357
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
557 PM CST Thu Nov 20 2025

For waters within five nautical miles of the shore on Lake Michigan

LMZ521-522-210900-
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-
557 PM CST Thu Nov 20 2025

.TONIGHT...W wind 10 to 20 kts. A chance of sprinkles in the
evening. Waves 1 to 3 ft.
.FRIDAY...W wind 5 to 10 kts veering NW in the afternoon. Mostly
sunny. Waves 2 ft or less.
.FRIDAY NIGHT...NW wind 5 to 10 kts. Mostly clear. Waves 2 ft or
less.
.SATURDAY...W wind 5 to 10 kts backing SW 10 to 15 kts in the
afternoon. Mostly cloudy. Waves 2 ft or less.

$$

LMZ541-210900-
Rock Island Passage to Sturgeon Bay WI-
557 PM CST Thu Nov 20 2025

.TONIGHT...W wind 10 to 20 kts. A chance of sprinkles in the
evening. Waves 1 to 3 ft.
.FRIDAY...NW wind 10 to 15 kts. Partly cloudy in the morning then
clearing. Waves 2 ft or less.
.FRIDAY NIGHT...NW wind 5 to 10 kts. Mostly clear. Waves 2 ft or
less.
.SATURDAY...W wind 5 to 10 kts backing SW 10 to 15 kts in the
afternoon. Mostly cloudy. Waves 2 ft or less.

$$

LMZ542-543-210900-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
557 PM CST Thu Nov 20 2025

.TONIGHT...W wind 10 to 20 kts. Mostly cloudy in the evening then
becoming partly cloudy. Waves 2 ft or less.
.FRIDAY...W wind 10 to 20 kts veering NW 5 to 10 kts in the
afternoon. Mostly sunny. Waves 2 ft or less.
.FRIDAY NIGHT...N wind 5 to 10 kts. Mostly clear. Waves 2 ft or
less.
.SATURDAY...W wind 5 to 10 kts backing SW 10 to 20 kts in the
afternoon. Partly cloudy in the morning then becoming mostly
cloudy. Waves 2 ft or less.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.