FZUS53 KGRB 130856
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
356 AM CDT Mon Apr 13 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-131600-
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-
356 AM CDT Mon Apr 13 2026

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

.EARLY THIS MORNING...W wind 10 to 15 kts. Waves 1 to 3 ft. Areas
of dense fog.
.TODAY...W wind 5 to 10 kts veering NE mid-day, then veering E
10 to 15 kts early in the afternoon. Waves 1 to 3 ft. Patchy fog
in the morning.
.TONIGHT...E wind 10 to 15 kts backing NE 5 to 10 kts after
midnight. Waves 2 ft or less. Patchy fog in the evening. Areas of
fog after midnight. showers and a chance of thunderstorms.
.TUESDAY...N wind 5 to 10 kts veering E in the late morning and
afternoon. Waves 2 ft or less. Areas of fog in the morning. .
.TUESDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. A
chance of showers.

$$

LMZ541-131600-
Rock Island Passage to Sturgeon Bay WI-
356 AM CDT Mon Apr 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.EARLY THIS MORNING...W wind 10 to 15 kts. Waves 4 to 7 ft. Areas
of dense fog.
.TODAY...NW wind 10 to 15 kts veering NE 5 to 10 kts mid-day,
then veering E early in the afternoon. Waves 4 to 7 ft subsiding
to 2 to 4 ft in the afternoon. Patchy fog in the morning.
.TONIGHT...E wind 10 to 15 kts. Waves 1 to 3 ft building to 2 to
4 ft after midnight. Patchy fog in the evening. Areas of fog
after midnight. showers and a chance of thunderstorms.
.TUESDAY...NW wind 5 to 10 kts veering SE early in the afternoon.
Waves 2 to 4 ft. Areas of fog in the morning. Patchy fog in the
afternoon. .
.TUESDAY NIGHT...NE wind 5 to 10 kts backing N after midnight.
Waves 1 to 3 ft. A chance of showers.

$$

LMZ542-543-131600-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
356 AM CDT Mon Apr 13 2026

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

.EARLY THIS MORNING...SW wind 10 to 20 kts. Waves 3 to 5 ft.
Patchy fog.
.TODAY...W wind 10 to 15 kts backing E in the late morning and
afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the
afternoon. Patchy dense fog. a slight chance of showers and
thunderstorms in the afternoon.
.TONIGHT...E wind 10 to 15 kts veering SW 5 to 10 kts after
midnight. Waves 1 to 3 ft building to 2 to 4 ft after midnight.
Patchy fog. showers in the evening. A chance of thunderstorms.
.TUESDAY...W wind 5 to 10 kts backing SE early in the afternoon.
Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon. Areas of
fog in the morning. a chance of showers in the afternoon.
.TUESDAY NIGHT...N wind 5 to 10 kts. Waves 1 to 3 ft. Rain
showers likely and a chance of thunderstorms in the evening, then
a chance of showers after midnight.

$$

See Lake Michigan Open Lake Forecast for Wednesday through Friday.

Wave height forecast is for ice free areas.