FZUS53 KGRB 161458
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
958 AM CDT Sat May 16 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-162200-
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-
958 AM CDT Sat May 16 2026

.THIS AFTERNOON...SW wind 10 to 15 kts. Waves 2 ft or less.
Sunny.
.TONIGHT...NW wind 10 to 15 kts veering NE in the late evening
and overnight. Waves 2 ft or less. Mostly clear.
.SUNDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. A chance of
showers.
.SUNDAY NIGHT...E wind 10 to 15 kts veering S 15 to 25 kts in the
late evening and overnight. Waves 2 to 4 ft. A chance of showers
in the evening. A chance of thunderstorms. Rain showers likely
after midnight. A Small Craft Advisory may be needed.

$$

LMZ541-162200-
Rock Island Passage to Sturgeon Bay WI-
958 AM CDT Sat May 16 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.THIS AFTERNOON...S wind 10 to 15 kts. Waves 3 to 5 ft subsiding
to 2 to 4 ft in the afternoon. Patchy fog early in the morning.
.TONIGHT...NW wind 10 to 15 kts veering NE in the late evening
and overnight. Waves 1 to 3 ft. Mostly clear.
.SUNDAY...NE wind 10 to 20 kts. Waves 2 to 4 ft. A chance of
showers.
.SUNDAY NIGHT...E wind 15 to 25 kts veering S in the late evening
and overnight. Waves 3 to 5 ft building to 5 to 8 ft after
midnight. A chance of showers in the evening. A chance of
thunderstorms. Rain showers likely after midnight. A Small Craft
Advisory may be needed.

$$

LMZ542-543-162200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
958 AM CDT Sat May 16 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.THIS AFTERNOON...SW wind 10 to 15 kts. Waves 2 to 4 ft subsiding
to 1 to 3 ft in the afternoon. Patchy fog early in the morning.
.TONIGHT...W wind 5 to 10 kts veering NE 10 to 15 kts in the late
evening and overnight. Waves 1 to 3 ft. Mostly clear.
.SUNDAY...NE wind 10 to 20 kts veering E early in the afternoon.
Waves 2 to 4 ft. A chance of showers.
.SUNDAY NIGHT...SE wind 15 to 25 kts veering S in the late
evening and overnight. Waves 3 to 5 ft building to 5 to 8 ft
after midnight. A chance of showers. A Small Craft Advisory may
be needed.

$$

See Lake Michigan Open Lake Forecast for Monday through Wednesday.

Wave height forecast is for ice free areas.