FZUS53 KGRB 070356
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1056 PM CDT Mon Apr 6 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-071000-
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-
1056 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.REST OF TONIGHT...N wind 10 to 15 kts. Waves 2 to 4 ft subsiding
to 1 to 3 ft after midnight. Mostly clear.
.TUESDAY...NW wind 5 to 10 kts backing S in the late morning and
afternoon. Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 10 to 20 kts. Waves 1 to 3 ft. A chance
of light snow after midnight.
.WEDNESDAY...S wind to 30 kts with gale force gusts to around
35 kts. Waves 3 to 5 ft. Light rain and light snow likely in the
morning, then a chance of light rain in the afternoon. A Small
Craft Advisory may be needed.

$$

LMZ541-071000-
Rock Island Passage to Sturgeon Bay WI-
1056 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.REST OF TONIGHT...N wind 15 to 25 kts backing NW 10 to 15 kts
after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after
midnight. Mostly cloudy late in the evening then becoming partly
cloudy.
.TUESDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts
in the late evening and overnight. Waves 1 to 3 ft building to
4 to 7 ft after midnight. A chance of light snow after midnight.
A Small Craft Advisory may be needed.
.WEDNESDAY...S wind to 30 kts increasing to gales to 35 kts in
the late morning and afternoon. Waves 10 to 14 ft. Light rain and
light snow likely in the morning. A Gale Warning may be needed.

$$

LMZ542-543-071000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1056 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY...

.REST OF TONIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts
after midnight. Waves 3 to 5 ft. A chance of flurries late in the
evening.
.TUESDAY...NW wind 5 to 10 kts backing S in the late morning and
afternoon. Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 10 to 15 kts increasing to to 30 kts in
the late evening and overnight. Waves 1 to 3 ft building to 5 to
8 ft after midnight. A chance of light snow after midnight. A
Small Craft Advisory may be needed.
.WEDNESDAY...S gales to 35 kts. Waves 10 to 14 ft. A chance of
light rain. A Gale Warning may be needed.

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.

Wave height forecast is for ice free areas.