FZUS53 KGRB 050556
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1256 AM CDT Sun Apr 5 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-051000-
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-
1256 AM CDT Sun Apr 5 2026

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

.REST OF THE NIGHT...W wind 15 to 25 kts. Waves 2 to 4 ft. A
chance of flurries and sprinkles late in the evening.
.SUNDAY...NW wind 10 to 20 kts backing W 5 to 10 kts early in the
afternoon. Waves 2 to 4 ft. Partly sunny.
.SUNDAY NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy in the evening then becoming partly cloudy.
.MONDAY...NW wind 10 to 15 kts increasing to 15 to 25 kts in the
late morning and afternoon. Waves 1 to 3 ft building to 2 to 4 ft
in the afternoon. A chance of light snow. A Small Craft Advisory
may be needed.

$$

LMZ541-051000-
Rock Island Passage to Sturgeon Bay WI-
1256 AM CDT Sun Apr 5 2026

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

.REST OF THE NIGHT...W wind 15 to 25 kts. Waves 2 to 4 ft. A
chance of sprinkles and flurries late in the evening.
.SUNDAY...NW wind 15 to 25 kts decreasing to 10 to 15 kts in the
late morning and afternoon. Waves 2 to 4 ft. Partly sunny.
.SUNDAY NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy in the evening then becoming partly cloudy.
.MONDAY...NW wind 10 to 15 kts increasing to to 30 kts in the
late morning and afternoon. Waves 1 to 3 ft building to 3 to 5 ft
in the afternoon. A chance of light snow. A Small Craft Advisory
may be needed.

$$

LMZ542-543-051000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1256 AM CDT Sun Apr 5 2026

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

.REST OF THE NIGHT...W wind to 30 kts. Waves 2 to 4 ft. A chance
of sprinkles and flurries late in the evening.
.SUNDAY...NW wind 15 to 25 kts backing W 10 to 15 kts early in
the afternoon. Waves 2 to 4 ft. Partly cloudy.
.SUNDAY NIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. A
chance of light rain in the evening.
.MONDAY...NW wind 15 to 25 kts veering N to 30 kts early in the
afternoon. Waves 1 to 3 ft building to 3 to 5 ft in the
afternoon. A chance of light snow. A Small Craft Advisory may be
needed.

$$

See Lake Michigan Open Lake Forecast for Tuesday through Thursday.

Wave height forecast is for ice free areas.