FZUS53 KGRB 012100
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
400 PM CDT Wed Apr 1 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-020400-
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-
400 PM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.LATE THIS AFTERNOON...NE wind 10 to 20 kts. Waves 1 to 3 ft.
Partly sunny.
.TONIGHT...E wind 15 to 25 kts. Waves 1 to 3 ft building to 2 to
4 ft after midnight. Freezing rain likely with possible sleet and
snow after midnight.
.THURSDAY...E wind to 30 kts becoming NE 10 to 20 kts early in
the afternoon. Gusts to 35 kts. Waves 3 to 5 ft. Freezing rain in
the morning. Rain.
.THURSDAY NIGHT...NE wind 10 to 15 kts backing W 15 to 25 kts in
the late evening and overnight. Waves 2 to 4 ft. Rain and a
chance of thunderstorms in the evening. A Small Craft Advisory
may be needed.
.FRIDAY...W wind 10 to 15 kts veering NE 5 to 10 kts early in the
afternoon. Waves 2 ft or less. Partly sunny.

$$

LMZ541-020400-
Rock Island Passage to Sturgeon Bay WI-
400 PM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.LATE THIS AFTERNOON...NE wind 15 to 25 kts. Waves 4 to 7 ft.
Partly sunny.
.TONIGHT...E wind to 30 kts. Waves 4 to 7 ft. A chance of light
snow, light freezing rain likely and a chance of light sleet
after midnight.
.THURSDAY...E gales to 35 kts decreasing to to 30 kts in the late
morning and afternoon. Waves 6 to 10 ft. Freezing rain in the
morning. Rain.
.THURSDAY NIGHT...E wind 15 to 25 kts veering SW, then veering W
after midnight. Waves 5 to 8 ft. Rain and a chance of
thunderstorms in the evening.
.FRIDAY...NW wind 10 to 15 kts veering NE 5 to 10 kts early in
the afternoon. Waves 4 to 7 ft subsiding to 2 to 4 ft in the
afternoon. Partly sunny.

$$

LMZ542-543-020400-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
400 PM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.LATE THIS AFTERNOON...NE wind 15 to 25 kts. Waves 4 to 7 ft.
Partly sunny.
.TONIGHT...E wind 15 to 25 kts. Waves 4 to 7 ft. Rain with
possible freezing rain and snow after midnight.
.THURSDAY...E wind to 30 kts. Waves 4 to 7 ft. Rain.
.THURSDAY NIGHT...SE wind 15 to 25 kts veering SW to 30 kts in
the late evening and overnight. Waves 5 to 8 ft. Rain likely and
a chance of thunderstorms in the evening.
.FRIDAY...W wind 10 to 15 kts veering NW 5 to 10 kts mid-day,
then veering NE 10 to 15 kts early in the afternoon. Waves 3 to
5 ft subsiding to 1 to 3 ft in the afternoon. Partly sunny.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.

Wave height forecast is for ice free areas.