FZUS53 KGRB 052155
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
455 PM CDT Sun Apr 5 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-060400-
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-
455 PM CDT Sun Apr 5 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...

.LATE THIS AFTERNOON...N wind 5 to 10 kts. Waves 2 ft or less.
Partly cloudy.
.TONIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. A slight
chance of showers in the evening.
.MONDAY...NW wind 10 to 15 kts veering N 15 to 25 kts in the late
morning and afternoon. Waves 1 to 3 ft building to 3 to 5 ft in
the afternoon. A chance of snow showers.
.MONDAY NIGHT...N wind 10 to 20 kts backing NW 5 to 10 kts after
midnight. Waves 3 to 5 ft subsiding to 1 to 3 ft after midnight.
Mostly clear.
.TUESDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Sunny.

$$

LMZ541-060400-
Rock Island Passage to Sturgeon Bay WI-
455 PM CDT Sun Apr 5 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...

.LATE THIS AFTERNOON...NW wind 5 to 10 kts. Waves 2 ft or less.
Partly cloudy.
.TONIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. A slight
chance of showers in the evening.
.MONDAY...NW wind 10 to 15 kts veering N 15 to 25 kts in the late
morning and afternoon. Waves 1 to 3 ft building to 2 to 4 ft in
the afternoon. A chance of snow showers.
.MONDAY NIGHT...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.
Partly cloudy.
.TUESDAY...NW wind 5 to 10 kts backing S early in the afternoon.
Waves 2 ft or less. Sunny.

$$

LMZ542-543-060400-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
455 PM CDT Sun Apr 5 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...

.LATE THIS AFTERNOON...W wind 5 to 10 kts. Waves 2 ft or less.
Partly cloudy.
.TONIGHT...W wind 10 to 15 kts. Waves 2 ft or less. A chance of
showers in the evening.
.MONDAY...NW wind 10 to 15 kts veering N 15 to 25 kts in the late
morning and afternoon. Waves 1 to 3 ft building to 3 to 5 ft in
the afternoon. A chance of snow showers in the afternoon.
.MONDAY NIGHT...N wind 15 to 25 kts decreasing to 10 to 15 kts
after midnight. Waves 4 to 7 ft subsiding to 3 to 5 ft after
midnight. A chance of snow showers in the evening.
.TUESDAY...NW wind 5 to 10 kts backing S in the late morning and
afternoon. Waves 2 ft or less. Sunny.

$$

See Lake Michigan Open Lake Forecast for Wednesday through Friday.

Wave height forecast is for ice free areas.