FZUS53 KGRB 302001
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
301 PM CDT Thu Apr 30 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-302200-
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-
301 PM CDT Thu Apr 30 2026

.THIS AFTERNOON...SE wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers.
.TONIGHT...NE wind 5 to 10 kts backing N after midnight. Waves
2 ft or less. A chance of showers and a slight chance of snow
showers in the evening.
.FRIDAY...N wind 5 to 10 kts veering NE early in the afternoon.
Waves 2 ft or less. Partly cloudy.
.FRIDAY NIGHT...NE wind 5 to 10 kts backing NW after midnight.
Waves 2 ft or less. Partly cloudy in the evening then clearing.

$$

LMZ541-302200-
Rock Island Passage to Sturgeon Bay WI-
301 PM CDT Thu Apr 30 2026

.THIS AFTERNOON...S wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers.
.TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A slight
chance of showers in the evening.
.FRIDAY...N wind 5 to 10 kts. Waves 2 ft or less. A chance of
sprinkles in the afternoon.
.FRIDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Mostly
clear.

$$

LMZ542-543-302200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
301 PM CDT Thu Apr 30 2026

.THIS AFTERNOON...SE wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers.
.TONIGHT...S wind 5 to 10 kts veering N in the late evening and
overnight. Waves 2 ft or less. A slight chance of showers in the
evening.
.FRIDAY...N wind 5 to 10 kts veering SE early in the afternoon.
Waves 2 ft or less. A chance of.
.FRIDAY NIGHT...E wind 5 to 10 kts backing N in the late evening
and overnight. Waves 2 ft or less. Mostly clear.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.

Wave height forecast is for ice free areas.