Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 101345
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
844 AM CDT Fri Oct 10 2025

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

LMZ521-522-102000-
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-
844 AM CDT Fri Oct 10 2025

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

.TODAY...SW wind 10 to 20 kts veering NW in the afternoon. Gusts
to around 30 kts. A chance of rain showers. Waves 2 to 4 ft
subsiding to 1 to 3 ft in the afternoon.
.TONIGHT...N wind 10 to 20 kts with gusts to around 25 kts. A
slight chance of rain showers in the evening. Waves 1 to 3 ft
building to 2 to 4 ft early in the morning.
.SATURDAY...NE wind 10 to 15 kts. Mostly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...E wind 5 to 10 kts veering SE after midnight.
Mostly clear. Waves 2 ft or less.

$$

LMZ541-102000-
Rock Island Passage to Sturgeon Bay WI-
844 AM CDT Fri Oct 10 2025

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

.TODAY...SW wind 15 to 25 kts veering W in the afternoon. Gusts
to around 30 kts. A chance of rain showers. Waves 4 to 7 ft
subsiding to 3 to 5 ft late in the afternoon.
.TONIGHT...N wind 10 to 20 kts with gusts to around 30 kts. A
chance of rain showers. Waves 3 to 5 ft subsiding to 2 to 4 ft
early in the morning.
.SATURDAY...NE wind 10 to 20 kts decreasing to 5 to 10 kts in the
afternoon. Mostly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...E wind 5 to 10 kts veering SE 10 to 15 kts
after midnight. Mostly clear. Waves 1 to 3 ft.

$$

LMZ542-543-102000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
844 AM CDT Fri Oct 10 2025

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

.TODAY...SW wind 10 to 20 kts veering W in the afternoon. Gusts
to around 25 kts. A chance of rain showers. Waves 3 to 5 ft
subsiding to 2 to 4 ft late in the afternoon.
.TONIGHT...NW wind 10 to 20 kts with gusts to around 25 kts. A
slight chance of rain showers in the evening. Waves 1 to 3 ft.
.SATURDAY...N wind 10 to 20 kts veering NE 5 to 10 kts in the
afternoon. Mostly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...E wind 5 to 10 kts veering SE 10 to 15 kts
after midnight. Mostly clear. Waves 1 to 3 ft.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.