FZUS53 KGRB 302241
NSHGRB

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

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-010400-
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-
541 PM CDT Thu Apr 30 2026

.LATE 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 rain and 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 in the morning then becoming
mostly 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.
.SATURDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Mostly sunny.

$$

LMZ541-010400-
Rock Island Passage to Sturgeon Bay WI-
541 PM CDT Thu Apr 30 2026

.LATE THIS AFTERNOON...SW 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 chance of
showers and a slight chance of snow 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. 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.

$$

LMZ542-543-010400-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
541 PM CDT Thu Apr 30 2026

.LATE 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 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 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.