FZUS53 KGRB 301336
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
836 AM CDT Thu Apr 30 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-301600-
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-
836 AM CDT Thu Apr 30 2026

.TODAY...NW wind 5 to 10 kts veering NE mid-day, then veering SE
early in the afternoon. Waves 2 ft or less. A chance of showers.
A slight chance of snow showers in the afternoon.
.TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A chance of
rain and snow showers in the evening, then a chance of sprinkles
after midnight.
.FRIDAY...N wind 5 to 10 kts veering NE early in the afternoon.
Waves 2 ft or less. A chance of sprinkles in the morning.
.FRIDAY NIGHT...NE wind 5 to 10 kts backing NW after midnight.
Waves 2 ft or less. Partly cloudy in the evening then clearing.

$$

LMZ541-301600-
Rock Island Passage to Sturgeon Bay WI-
836 AM CDT Thu Apr 30 2026

.TODAY...NW wind 5 to 10 kts veering NE mid-day, then veering S
early in the afternoon. Waves 2 ft or less. A chance of showers.
.TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A chance of
showers and a slight chance of snow showers in the evening, then
a chance of sprinkles after midnight.
.FRIDAY...N wind 5 to 10 kts. Waves 2 ft or less. A chance of
sprinkles in the morning.
.FRIDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Mostly
clear.

$$

LMZ542-543-301600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
836 AM CDT Thu Apr 30 2026

.TODAY...NW wind 5 to 10 kts veering NE mid-day, then veering E
early in the afternoon. Waves 2 ft or less. A chance of showers.
.TONIGHT...SW wind 5 to 10 kts veering N in the late evening and
overnight. Waves 2 ft or less. A chance of showers in the
evening, then a chance of sprinkles after midnight.
.FRIDAY...N wind 5 to 10 kts veering E early in the afternoon.
Waves 2 ft or less. A chance of sprinkles in the morning.
.FRIDAY NIGHT...NE 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 Saturday through Monday.

Wave height forecast is for ice free areas.