Nearshore Marine Forecast
Issued by NWS Green Bay, WI

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FZUS53 KGRB 171637
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
1136 AM CDT Sun May 17 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-172200-
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-
1136 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

.THIS AFTERNOON...NE wind 10 to 20 kts. Waves 1 to 3 ft. A chance
of showers during the morning. A slight chance of thunderstorms.
Rain showers in the afternoon.
.TONIGHT...E wind 10 to 15 kts veering SE 10 to 20 kts, then
veering S 15 to 25 kts after midnight. Waves 2 to 4 ft. A chance
of showers and thunderstorms.
.MONDAY...S wind 10 to 20 kts. Waves 2 to 4 ft. A chance of
showers and thunderstorms.
.MONDAY NIGHT...S wind 10 to 15 kts. Waves 2 to 4 ft. Rain
showers and a chance of thunderstorms.

$$

LMZ541-172200-
Rock Island Passage to Sturgeon Bay WI-
1136 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...NE wind 10 to 20 kts. Waves 1 to 3 ft building
to 2 to 4 ft in the afternoon. A chance of showers during the
morning. A slight chance of thunderstorms. Rain showers in the
afternoon. patchy fog in the afternoon.
.TONIGHT...E wind 10 to 20 kts veering S 15 to 25 kts after
midnight. Waves 3 to 5 ft building to 4 to 7 ft after midnight.
Patchy fog. showers in the evening. A chance of thunderstorms. A
chance of showers after midnight.
.MONDAY...S wind 15 to 25 kts. Waves 5 to 8 ft. Patchy fog in the
morning. a chance of showers and thunderstorms.
.MONDAY NIGHT...S wind 15 to 25 kts. Waves 5 to 8 ft. A chance of
showers in the evening. A chance of thunderstorms. Rain showers
after midnight.

$$

LMZ542-543-172200-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1136 AM CDT Sun May 17 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...NE wind 10 to 20 kts. Waves 2 to 4 ft. Rain
showers likely and a chance of thunderstorms. patchy fog in the
afternoon.
.TONIGHT...E wind 10 to 15 kts veering S 15 to 25 kts in the late
evening and overnight. Waves 4 to 7 ft. Patchy fog. a chance of
showers and a slight chance of thunderstorms.
.MONDAY...S wind 15 to 25 kts. Waves 4 to 7 ft. Patchy fog in the
morning. a chance of showers and thunderstorms.
.MONDAY NIGHT...S wind 15 to 25 kts. Waves 5 to 8 ft. A chance of
showers in the evening. A chance of thunderstorms. Rain showers
after midnight.

$$

See Lake Michigan Open Lake Forecast for Tuesday through Thursday.

Wave height forecast is for ice free areas.