FZUS53 KGRB 010240
NSHGRB

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

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-011000-
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-
940 PM CDT Thu Apr 30 2026

.REST OF TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A
chance of rain and snow showers early in the evening.
.FRIDAY...N wind 5 to 10 kts veering NE early in the afternoon.
Waves 2 ft or less. A slight chance of rain and snow showers in
the afternoon.
.FRIDAY NIGHT...NE wind 5 to 10 kts backing NW after midnight.
Waves 2 ft or less. Partly cloudy in the evening then clearing.
.SATURDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Mostly sunny.

$$

LMZ541-011000-
Rock Island Passage to Sturgeon Bay WI-
940 PM CDT Thu Apr 30 2026

.REST OF TONIGHT...N wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers and a slight chance of snow showers early 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. Partly
cloudy in the evening then clearing.
.SATURDAY...NW wind 5 to 10 kts backing SW in the late morning
and afternoon. Waves 2 ft or less. Sunny.

$$

LMZ542-543-011000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
940 PM CDT Thu Apr 30 2026

.REST OF TONIGHT...W wind 5 to 10 kts veering N in the late
evening and overnight. Waves 2 ft or less. A chance of showers
early in the evening.
.FRIDAY...N wind 5 to 10 kts veering SE early in the afternoon.
Waves 2 ft or less. A chance of showers in the afternoon.
.FRIDAY NIGHT...E wind 5 to 10 kts backing N in the late evening
and overnight. Waves 2 ft or less. Mostly cloudy in the evening
then clearing.
.SATURDAY...N wind 5 to 10 kts veering SE in the late morning and
afternoon. Waves 2 ft or less. Mostly sunny.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.

Wave height forecast is for ice free areas.