FZUS53 KGRB 271336
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
836 AM CDT Mon Apr 27 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-271600-
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 Mon Apr 27 2026

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

.TODAY...SE wind 15 to 25 kts. Waves 2 to 4 ft. Patchy fog. a
slight chance of showers in the morning. Rain showers and a
chance of thunderstorms in the afternoon.
.TONIGHT...S wind 15 to 25 kts veering SW after midnight. Waves
2 to 4 ft. Patchy fog in the evening. showers in the evening. A
chance of thunderstorms. A 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 1 to 3 ft. Partly sunny.
.TUESDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy.

$$

LMZ541-271600-
Rock Island Passage to Sturgeon Bay WI-
836 AM CDT Mon Apr 27 2026

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

.TODAY...SE wind 15 to 25 kts. Waves 4 to 7 ft. Patchy fog.
showers and a chance of thunderstorms in the afternoon.
.TONIGHT...S wind to 30 kts veering SW 15 to 25 kts after
midnight. Waves 6 to 10 ft. Patchy fog in the evening. showers
and a chance of thunderstorms in the evening, then a 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 4 to 7 ft. Partly sunny.
.TUESDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy.

$$

LMZ542-543-271600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
836 AM CDT Mon Apr 27 2026

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

.TODAY...SE wind to 30 kts with gale force gusts to around
35 kts. Waves 4 to 7 ft building to 6 to 10 ft in the afternoon.
Patchy fog. a chance of showers in the morning. Rain showers
likely and a chance of thunderstorms in the afternoon.
.TONIGHT...S wind to 30 kts veering SW 15 to 25 kts after
midnight. Waves 8 to 12 ft subsiding to 6 to 10 ft after
midnight. Patchy fog in the evening. showers and a chance of
thunderstorms in the evening, then a chance of showers after
midnight.
.TUESDAY...W wind 15 to 25 kts decreasing to 10 to 15 kts early
in the afternoon. Waves 4 to 7 ft subsiding to 1 to 3 ft in the
afternoon. Partly sunny.
.TUESDAY NIGHT...NW wind 5 to 10 kts veering N in the late
evening and overnight. Waves 2 ft or less. Mostly cloudy.

$$

See Lake Michigan Open Lake Forecast for Wednesday through Friday.

Wave height forecast is for ice free areas.