FZUS53 KGRB 181712
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1212 PM CDT Wed Mar 18 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-182200-
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-
1212 PM CDT Wed Mar 18 2026

.THIS AFTERNOON...SW wind 10 to 15 kts. Waves 2 ft or less. A
chance of freezing drizzle late in the morning.
.TONIGHT...SW wind 10 to 15 kts. Waves 2 ft or less. A slight
chance of light freezing rain.
.THURSDAY...NW wind 5 to 10 kts veering E mid-day, then veering
SE early in the afternoon. Waves 2 ft or less. Partly sunny.
.THURSDAY NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy.

$$

LMZ541-182200-
Rock Island Passage to Sturgeon Bay WI-
1212 PM CDT Wed Mar 18 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

.THIS AFTERNOON...SW wind 15 to 25 kts decreasing to 10 to 15 kts
early in the afternoon. Waves 4 to 7 ft. A chance of freezing
drizzle late in the morning.
.TONIGHT...SW wind 10 to 15 kts veering W 5 to 10 kts after
midnight. Waves 4 to 7 ft subsiding to 2 to 4 ft after midnight.
Cloudy.
.THURSDAY...N wind 5 to 10 kts veering NE mid-day, then veering
SE early in the afternoon. Waves 2 ft or less. Partly sunny.
.THURSDAY NIGHT...S wind 5 to 10 kts. Waves 2 ft or less. A
chance of light rain after midnight.

$$

LMZ542-543-182200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1212 PM CDT Wed Mar 18 2026

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

.THIS AFTERNOON...SW wind 15 to 25 kts decreasing to 10 to 15 kts
early in the afternoon. Waves 4 to 7 ft. A chance of freezing
drizzle late in the morning.
.TONIGHT...SW wind 5 to 10 kts veering W after midnight. Waves
3 to 5 ft subsiding to 1 to 3 ft after midnight. A chance of
light rain. A Small Craft Advisory may be needed.
.THURSDAY...NW wind 5 to 10 kts veering E mid-day, then veering
SE early in the afternoon. Waves 2 ft or less. Partly sunny.
.THURSDAY NIGHT...S wind 5 to 10 kts veering SW 10 to 15 kts
after midnight. Waves 2 ft or less. Mostly cloudy.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.