Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 311140
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
540 AM CST Fri Jan 31 2025

For waters within five nautical miles of the shore on Lake Michigan

LMZ521-522-312100-
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-
540 AM CST Fri Jan 31 2025

.TODAY...N wind 10 to 20 kts with a few gusts to around 25 kts.
Mostly cloudy.
.TONIGHT...N wind 10 to 20 kts decreasing to 5 to 10 kts after
midnight. Mostly cloudy in the evening then becoming partly
cloudy.
.SATURDAY...NE wind 5 to 10 kts veering SE 10 to 20 kts in the
afternoon. A chance of flurries in the afternoon.
.SATURDAY NIGHT...SE wind 15 to 25 kts. Snow likely. A Small
Craft Advisory may be needed.

Wave height forecast omitted for mostly ice covered areas.
$$

LMZ541-312100-
Rock Island Passage to Sturgeon Bay WI-
540 AM CST Fri Jan 31 2025

.TODAY...N wind 10 to 20 kts with a few gusts to around 25 kts.
Mostly cloudy. Waves 1 to 3 ft building to 2 to 4 ft in the late
morning and afternoon.
.TONIGHT...N wind 10 to 20 kts with gusts to around 25 kts.
Mostly cloudy. Waves 1 to 3 ft.
.SATURDAY...NE wind 10 to 15 kts veering SE 10 to 20 kts in the
afternoon. A chance of flurries in the afternoon. Waves 1 to 3 ft
building to 2 to 4 ft late in the afternoon.
.SATURDAY NIGHT...SE wind 15 to 25 kts with gusts to around
30 kts. A chance of light snow in the evening, then snow after
midnight. Waves 3 to 5 ft building to 6 to 10 ft. A Small Craft
Advisory may be needed.

Wave height forecast is for ice free areas.
$$

LMZ542-543-312100-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
540 AM CST Fri Jan 31 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM CST THIS MORNING
THROUGH THIS EVENING...

.TODAY...NE wind 10 to 20 kts with gusts to around 30 kts. Mostly
cloudy. Waves 2 to 4 ft building to 4 to 7 ft.
.TONIGHT...N wind 10 to 20 kts with gusts to around 25 kts.
Mostly cloudy. Waves 3 to 5 ft.
.SATURDAY...E wind 10 to 15 kts veering SE 10 to 20 kts in the
afternoon. Gusts to around 25 kts. Mostly cloudy. Waves 1 to 3 ft
building to 3 to 5 ft.
.SATURDAY NIGHT...SE wind 15 to 25 kts with gusts to around
30 kts. A chance of light snow in the evening, then light snow
likely after midnight. Waves 4 to 7 ft building to 6 to 10 ft.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.