FZUS53 KGRB 070006
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
706 PM CDT Mon Apr 6 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-070400-
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-
706 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.TONIGHT...N wind 15 to 25 kts backing NW 10 to 15 kts in the
late evening and overnight. Waves 3 to 5 ft subsiding to 1 to
3 ft after midnight. Scattered snow showers in the evening.
.TUESDAY...NW wind 5 to 10 kts backing SW mid-day, then backing S
early in the afternoon. Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 10 to 20 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 and light snow likely in the
morning, then a chance of light rain in the afternoon. A Small
Craft Advisory may be needed.

$$

LMZ541-070400-
Rock Island Passage to Sturgeon Bay WI-
706 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.TONIGHT...N wind 15 to 25 kts backing NW 10 to 15 kts after
midnight. Waves 3 to 5 ft subsiding to 1 to 3 ft after midnight.
Scattered snow showers in the evening.
.TUESDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 15 to 25 kts. Waves 1 to 3 ft building to
4 to 7 ft after midnight. Mostly clear in the evening then
becoming mostly cloudy. A Small Craft Advisory may be needed.
.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. A Gale Warning
may be needed.

$$

LMZ542-543-070400-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
706 PM CDT Mon Apr 6 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY...

.TONIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts after
midnight. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight.
Scattered snow showers in the evening.
.TUESDAY...N wind 5 to 10 kts veering SE 10 to 15 kts in the late
morning and afternoon. Waves 2 ft or less. Sunny.
.TUESDAY NIGHT...S wind 15 to 25 kts. Waves 1 to 3 ft building to
5 to 8 ft after midnight. A chance of light snow and light rain
after midnight. A Small Craft Advisory may be needed.
.WEDNESDAY...S gales to 35 kts. Waves 10 to 14 ft. A chance of
light snow in the morning. A chance of light rain. A Gale Warning
may be needed.

$$

See Lake Michigan Open Lake Forecast for Thursday through Saturday.

Wave height forecast is for ice free areas.