FZUS53 KGRB 251717
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1217 PM CDT Wed Mar 25 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-252200-
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-
1217 PM CDT Wed Mar 25 2026

.THIS AFTERNOON...S wind 10 to 15 kts. Waves 2 ft or less. Partly
sunny.
.TONIGHT...SW wind 5 to 10 kts veering W, then backing SW after
midnight. Waves 2 ft or less. Patchy fog after midnight.
.THURSDAY...N wind 5 to 10 kts increasing to 10 to 20 kts early
in the afternoon. Waves 1 to 3 ft. Patchy fog in the morning. a
chance of light rain.
.THURSDAY NIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts
in the late evening and overnight. Waves 1 to 3 ft. Mostly cloudy
in the evening then becoming partly cloudy. A Small Craft
Advisory may be needed.

$$

LMZ541-252200-
Rock Island Passage to Sturgeon Bay WI-
1217 PM CDT Wed Mar 25 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S wind 10 to 20 kts. Waves 2 to 4 ft building
to 3 to 5 ft in the afternoon. Mostly cloudy.
.TONIGHT...SW wind 5 to 10 kts veering W, then backing SW after
midnight. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight.
Patchy fog after midnight.
.THURSDAY...NW wind 10 to 15 kts veering N 15 to 25 kts early in
the afternoon. Waves 1 to 3 ft building to 2 to 4 ft in the
afternoon. Patchy fog in the morning. a chance of light rain.
.THURSDAY NIGHT...N wind 15 to 25 kts. Waves 3 to 5 ft. Mostly
cloudy in the evening then becoming partly cloudy.

$$

LMZ542-543-252200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1217 PM CDT Wed Mar 25 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S wind 15 to 25 kts decreasing to 10 to 15 kts
early in the afternoon. Waves 3 to 5 ft. Partly sunny.
.TONIGHT...SW wind 5 to 10 kts. Waves 3 to 5 ft subsiding to 1 to
3 ft after midnight. Partly cloudy.
.THURSDAY...NW wind 5 to 10 kts veering N 10 to 15 kts mid-day,
then increasing to 15 to 25 kts early in the afternoon. Waves
2 ft or less building to 3 to 5 ft in the afternoon. A chance of
light rain.
.THURSDAY NIGHT...N wind to 30 kts. Waves 5 to 8 ft. Mostly
cloudy in the evening then becoming partly cloudy.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.