FZUS53 KGRB 120512
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1211 AM CDT Fri Jun 12 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-121000-
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-
1211 AM CDT Fri Jun 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS
MORNING...

.REST OF THE NIGHT...W wind 15 to 25 kts. Waves 3 to 5 ft. A
slight chance of showers late in the evening.
.FRIDAY...W wind 10 to 15 kts backing SW 15 to 25 kts in the late
morning and afternoon. Waves 1 to 3 ft building to 2 to 4 ft in
the afternoon. Sunny. A Small Craft Advisory may be needed.
.FRIDAY NIGHT...SW wind 10 to 15 kts. Waves 2 to 4 ft. A chance
of showers after midnight.
.SATURDAY...SW wind 10 to 20 kts. Waves 1 to 3 ft. A chance of
showers and thunderstorms.

$$

LMZ541-121000-
Rock Island Passage to Sturgeon Bay WI-
1211 AM CDT Fri Jun 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...

.REST OF THE NIGHT...W wind 15 to 25 kts decreasing to 10 to
15 kts after midnight. Waves 4 to 7 ft. A slight chance of
showers and thunderstorms late in the evening.
.FRIDAY...SW wind 10 to 20 kts. Waves 2 to 4 ft subsiding to 1 to
3 ft in the afternoon. Sunny.
.FRIDAY NIGHT...SW wind 10 to 15 kts. Waves 1 to 3 ft. A chance
of showers after midnight.
.SATURDAY...SW wind 10 to 15 kts. Waves 1 to 3 ft building to
2 to 4 ft in the afternoon. A chance of showers and
thunderstorms.

$$

LMZ542-543-121000-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1211 AM CDT Fri Jun 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...

.REST OF THE NIGHT...W wind 15 to 25 kts. Waves 4 to 7 ft. Mostly
clear.
.FRIDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Sunny. A Small
Craft Advisory may be needed.
.FRIDAY NIGHT...SW wind 10 to 15 kts. Waves 2 ft or less. Clear
in the evening then becoming mostly cloudy.
.SATURDAY...SW wind 10 to 20 kts. Waves 1 to 3 ft building to
2 to 4 ft in the afternoon. Rain showers likely and a chance of
thunderstorms in the afternoon.

$$

See Lake Michigan Open Lake Forecast for Sunday through Tuesday.