FZUS53 KGRB 280244
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
944 PM CDT Mon Apr 27 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-281000-
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-
944 PM CDT Mon Apr 27 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.REST OF TONIGHT...S wind 10 to 20 kts veering SW after midnight.
Waves 2 to 4 ft. A slight chance of thunderstorms early in the
evening. A chance of showers.
.TUESDAY...W wind 10 to 20 kts. Waves 2 to 4 ft subsiding to 1 to
3 ft in the afternoon. Mostly cloudy in the morning then becoming
partly cloudy.
.TUESDAY NIGHT...N wind 5 to 10 kts veering NE in the late
evening and overnight. Waves 2 ft or less. Partly cloudy in the
evening then becoming mostly cloudy.
.WEDNESDAY...N wind 5 to 10 kts. Waves 2 ft or less. Partly
sunny.

$$

LMZ541-281000-
Rock Island Passage to Sturgeon Bay WI-
944 PM CDT Mon Apr 27 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.REST OF TONIGHT...S wind 15 to 25 kts veering SW 10 to 20 kts
after midnight. Waves 6 to 10 ft. Rain showers likely early in
the evening. A slight chance of thunderstorms. A chance of
showers after midnight.
.TUESDAY...W wind 10 to 20 kts decreasing to 5 to 10 kts early in
the afternoon. Waves 4 to 7 ft subsiding to 2 to 4 ft in the
afternoon. Partly sunny.
.TUESDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Partly
cloudy in the evening then becoming mostly cloudy.
.WEDNESDAY...N wind 5 to 10 kts veering SE early in the
afternoon. Waves 2 ft or less. Mostly cloudy in the morning then
becoming partly cloudy.

$$

LMZ542-543-281000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
944 PM CDT Mon Apr 27 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.REST OF TONIGHT...S wind 15 to 25 kts veering W after midnight.
Waves 6 to 10 ft subsiding to 5 to 8 ft after midnight. Rain
showers likely and a slight chance of thunderstorms early in the
evening, then a slight chance of showers after midnight.
.TUESDAY...W wind 15 to 25 kts decreasing to 10 to 15 kts in the
late morning and afternoon. Waves 3 to 5 ft subsiding to 1 to
3 ft in the afternoon. Mostly cloudy in the morning then becoming
partly cloudy.
.TUESDAY NIGHT...NW wind 5 to 10 kts veering NE in the late
evening and overnight. Waves 2 ft or less. Mostly cloudy.
.WEDNESDAY...N wind 5 to 10 kts veering E early in the afternoon.
Waves 2 ft or less. Partly sunny.

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.

Wave height forecast is for ice free areas.