FZUS53 KGRB 300736
NSHGRB

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

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-301000-
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-
236 AM CDT Thu Apr 30 2026

.REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less.
Mostly cloudy.
.THURSDAY...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.
.THURSDAY NIGHT...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.

$$

LMZ541-301000-
Rock Island Passage to Sturgeon Bay WI-
236 AM CDT Thu Apr 30 2026

.REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers.
.THURSDAY...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.
.THURSDAY NIGHT...N wind 5 to 10 kts. 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. Waves 2 ft or less. A chance of
sprinkles in the morning.

$$

LMZ542-543-301000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
236 AM CDT Thu Apr 30 2026

.REST OF THE NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less.
Mostly cloudy.
.THURSDAY...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.
.THURSDAY NIGHT...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.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.

Wave height forecast is for ice free areas.