Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 131936
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
236 PM CDT Wed May 13 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-132200-
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-
236 PM CDT Wed May 13 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THIS AFTERNOON...N wind 10 to 20 kts. Waves 1 to 3 ft. Partly
cloudy.
.TONIGHT...NW wind 5 to 10 kts. Waves 1 to 3 ft. Clear.
.THURSDAY...N wind around 5 kts veering SE in the late morning
and afternoon. Waves 2 ft or less. Sunny.
.THURSDAY NIGHT...S wind 10 to 15 kts. Waves 1 to 3 ft. A chance
of showers after midnight.

$$

LMZ541-132200-
Rock Island Passage to Sturgeon Bay WI-
236 PM CDT Wed May 13 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THIS AFTERNOON...N wind 10 to 20 kts. Waves 1 to 3 ft. Mostly
sunny.
.TONIGHT...NW wind 10 to 15 kts. Waves 2 ft or less. Clear.
.THURSDAY...N wind 5 to 10 kts veering SE mid-day, then veering S
early in the afternoon. Waves 2 ft or less. Sunny.
.THURSDAY NIGHT...S wind 10 to 15 kts. Waves 2 ft or less
building to 2 to 4 ft after midnight. Partly cloudy in the
evening then becoming cloudy.

$$

LMZ542-543-132200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
236 PM CDT Wed May 13 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THIS AFTERNOON...N wind 10 to 20 kts. Waves 1 to 3 ft. Partly
cloudy.
.TONIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Clear.
.THURSDAY...N wind 5 to 10 kts veering E mid-day, then veering SE
early in the afternoon. Waves 2 ft or less. Sunny.
.THURSDAY NIGHT...S wind 10 to 15 kts. Waves 2 ft or less
building to 2 to 4 ft after midnight. Partly cloudy in the
evening then becoming mostly cloudy.

$$

See Lake Michigan Open Lake Forecast for Saturday through Monday.

Wave height forecast is for ice free areas.