FZUS53 KGRB 041518
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1018 AM CDT Sat Apr 4 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-042200-
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-
1018 AM CDT Sat Apr 4 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON
THROUGH SUNDAY AFTERNOON...

.THIS AFTERNOON...NE wind 10 to 15 kts backing SW early in the
afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the
afternoon. Rain during the morning.
.TONIGHT...W wind 15 to 25 kts. Waves 1 to 3 ft. Mostly cloudy in
the evening then becoming partly cloudy.
.SUNDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late
morning and afternoon. Waves 1 to 3 ft. Mostly sunny.
.SUNDAY NIGHT...W wind 5 to 10 kts. Waves 2 ft or less. A chance
of light rain in the evening.

$$

LMZ541-042200-
Rock Island Passage to Sturgeon Bay WI-
1018 AM CDT Sat Apr 4 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.THIS AFTERNOON...E wind 10 to 20 kts veering SW 10 to 15 kts
early in the afternoon. Waves 4 to 7 ft subsiding to 3 to 5 ft in
the afternoon. Rain likely during the morning, then a slight
chance of light rain in the afternoon.
.TONIGHT...W wind 15 to 25 kts. Waves 2 to 4 ft. Mostly cloudy in
the evening then becoming partly cloudy.
.SUNDAY...NW wind 15 to 25 kts decreasing to 10 to 15 kts in the
late morning and afternoon. Waves 2 to 4 ft. Partly cloudy in the
morning then clearing.
.SUNDAY NIGHT...NW wind 5 to 10 kts. Waves 2 ft or less. Mostly
cloudy in the evening then becoming partly cloudy.

$$

LMZ542-543-042200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1018 AM CDT Sat Apr 4 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.THIS AFTERNOON...E wind 10 to 15 kts veering SW mid-day, then
veering W 15 to 25 kts early in the afternoon. Waves 4 to 7 ft.
Light rain likely during the morning.
.TONIGHT...W wind to 30 kts. Waves 2 to 4 ft. Partly cloudy.
.SUNDAY...NW wind 15 to 25 kts backing W 10 to 15 kts early in
the afternoon. Waves 2 to 4 ft. Mostly sunny.
.SUNDAY NIGHT...W wind 10 to 15 kts. Waves 2 ft or less. A chance
of light rain in the evening.

$$

See Lake Michigan Open Lake Forecast for Monday through Wednesday.

Wave height forecast is for ice free areas.