FZUS53 KGRB 071347
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
847 AM CDT Tue Apr 7 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-071600-
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-
847 AM CDT Tue Apr 7 2026

.TODAY...NW wind 5 to 10 kts backing S in the late morning and
afternoon. Waves 2 ft or less. Sunny.
.TONIGHT...S wind 10 to 15 kts. Waves 1 to 3 ft. A chance of
light snow after midnight.
.WEDNESDAY...S wind to 30 kts with gale force gusts to around
35 kts. Waves 3 to 5 ft. Light rain, light snow and light sleet
likely in the morning, then a chance of light rain in the
afternoon. A Small Craft Advisory may be needed.
.WEDNESDAY NIGHT...SW wind 15 to 25 kts with gale force gusts to
around 35 kts decreasing to 10 to 15 kts after midnight. Waves
3 to 5 ft subsiding to 1 to 3 ft after midnight. Rain in the
evening.

$$

LMZ541-071600-
Rock Island Passage to Sturgeon Bay WI-
847 AM CDT Tue Apr 7 2026

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING...

.TODAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Sunny.
.TONIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts after
midnight. Waves 1 to 3 ft building to 4 to 7 ft after midnight. A
chance of light snow after midnight.
.WEDNESDAY...S wind to 30 kts increasing to gales to 35 kts in
the late morning and afternoon. Gusts to 40 kts. Waves 12 to
16 ft. Light rain, light snow and light sleet likely in the
morning, then a chance of light rain in the afternoon.
.WEDNESDAY NIGHT...S wind to 30 kts with gale force gusts to
around 40 kts becoming SW 10 to 20 kts after midnight. Waves
12 to 16 ft subsiding to 8 to 12 ft after midnight. Rain in the
evening, then a chance of light rain after midnight.

$$

LMZ542-543-071600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
847 AM CDT Tue Apr 7 2026

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING...

.TODAY...NW wind 5 to 10 kts backing S in the late morning and
afternoon. Waves 2 ft or less. Sunny.
.TONIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts after
midnight. Waves 1 to 3 ft building to 5 to 8 ft after midnight. A
chance of light snow after midnight.
.WEDNESDAY...S wind to 30 kts increasing to gales to 35 kts in
the late morning and afternoon. Waves 10 to 14 ft. A chance of
light snow in the morning. A chance of light rain.
.WEDNESDAY NIGHT...S wind to 30 kts with gale force gusts to
around 35 kts becoming SW 10 to 15 kts after midnight. Waves
10 to 14 ft subsiding to 6 to 10 ft after midnight. Rain in the
evening, then a chance of light rain after midnight.

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.

Wave height forecast is for ice free areas.