FZUS53 KGRB 180731
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
231 AM CDT Wed Mar 18 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-181000-
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-
231 AM CDT Wed Mar 18 2026

.REST OF THE NIGHT...S wind 10 to 15 kts. Waves 2 ft or less. A
chance of light snow.
.WEDNESDAY...SW wind 10 to 15 kts. Waves 2 ft or less. A chance
of light snow and freezing drizzle in the morning.
.WEDNESDAY NIGHT...SW wind 5 to 10 kts. Waves 2 ft or less. A
chance of light freezing rain and light snow.
.THURSDAY...NW wind 5 to 10 kts veering NE mid-day, then veering
SE early in the afternoon. Waves 2 ft or less. Partly cloudy.

$$

LMZ541-181000-
Rock Island Passage to Sturgeon Bay WI-
231 AM CDT Wed Mar 18 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...

.REST OF THE NIGHT...SW wind 10 to 20 kts. Waves 3 to 5 ft. A
chance of light snow.
.WEDNESDAY...SW wind 15 to 25 kts decreasing to 10 to 15 kts
early in the afternoon. Waves 4 to 7 ft. A chance of light snow
and freezing drizzle in the morning.
.WEDNESDAY NIGHT...SW wind 10 to 15 kts. Waves 4 to 7 ft. A
chance of light snow. A chance of light rain and light freezing
rain after midnight.
.THURSDAY...NW wind 5 to 10 kts veering N mid-day, then veering S
early in the afternoon. Waves 2 ft or less. Partly cloudy.

$$

LMZ542-543-181000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
231 AM CDT Wed Mar 18 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...

.REST OF THE NIGHT...SW wind 15 to 25 kts. Waves 3 to 5 ft. A
chance of light snow.
.WEDNESDAY...SW wind 15 to 25 kts decreasing to 10 to 15 kts
early in the afternoon. Waves 4 to 7 ft. A chance of light snow
and freezing drizzle in the morning.
.WEDNESDAY NIGHT...SW wind 10 to 15 kts. Waves 3 to 5 ft
subsiding to 1 to 3 ft after midnight. A chance of light rain,
light freezing rain and light snow. A Small Craft Advisory may be
needed.
.THURSDAY...N wind 5 to 10 kts veering E early in the afternoon.
Waves 2 ft or less. Partly sunny.

$$

See Lake Michigan Open Lake Forecast for Friday through Sunday.

Wave height forecast is for ice free areas.