Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
311 PM CST Mon Nov 17 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-180500-
Sheboygan to Port Washington WI-
311 PM CST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

.TONIGHT...Northeast wind 5 to 10 knots veering east late in the
evening, then veering southeast after midnight becoming southeast
5 to 10 knots early in the morning. Chance of rain after
midnight. Rain likely early in the morning. Waves around 1 foot.
.TUESDAY...East wind 10 to 15 knots with gusts to around 20 knots
becoming east 10 to 15 knots late in the afternoon. Rain in the
morning, then chance of rain in the afternoon. Waves 1 to 2 feet
building to 2 to 4 feet in the late morning and afternoon.
.TUESDAY NIGHT...East wind 10 to 15 knots backing northeast late
in the evening, then easing to 5 to 10 knots after midnight.
Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight.
.WEDNESDAY...East wind 5 to 10 knots veering southeast late in
the afternoon. Mostly cloudy. Waves around 1 foot.

Wave heights are for ice free areas.

$$
LMZ644-180500-
Port Washington to North Point Light WI-
311 PM CST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

.TONIGHT...East wind 5 to 10 knots veering southeast late in the
evening, then becoming southeast 5 to 10 knots after midnight
rising to 10 to 15 knots early in the morning. Chance of rain
after midnight. Rain early in the morning. Waves around 1 foot.
.TUESDAY...East wind 10 to 20 knots becoming 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Rain in the morning, then rain likely in the
afternoon. Waves 3 to 4 feet.
.TUESDAY NIGHT...East wind 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. Mostly cloudy
through around midnight then becoming partly cloudy. Waves 3 to
4 feet.
.WEDNESDAY...East wind 10 to 15 knots becoming southeast 5 to
10 knots in the afternoon. Mostly cloudy. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
LMZ645-180500-
North Point Light to Wind Point WI-
311 PM CST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

.TONIGHT...East wind 5 to 10 knots veering southeast late in the
evening, then becoming southeast 5 to 10 knots after midnight
rising to 10 to 15 knots early in the morning. Slight chance of
rain late in the evening. Chance of rain after midnight, then
rain early in the morning. Waves around 1 foot.
.TUESDAY...East wind 15 to 20 knots. Rain likely through the day.
Waves 3 to 4 feet building to 4 to 6 feet in the afternoon.
.TUESDAY NIGHT...East wind 15 to 20 knots backing northeast late
in the evening, then easing to 10 to 15 knots after midnight.
Mostly cloudy. Waves 4 to 6 feet subsiding to 3 to 4 feet after
midnight.
.WEDNESDAY...East wind 10 to 15 knots becoming southeast 5 to
10 knots in the afternoon. Mostly cloudy. Waves 2 to 4 feet
subsiding to 1 to 2 feet in the late morning and afternoon.

Wave heights are for ice free areas.

$$
LMZ646-180500-
Wind Point WI to Winthrop Harbor IL-
311 PM CST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

.TONIGHT...East wind 5 to 10 knots veering southeast late in the
evening, then rising to 10 to 15 knots after midnight becoming
southeast 10 to 15 knots with gusts to around 20 knots early in
the morning. Slight chance of rain late in the evening. Chance of
rain after midnight, then rain early in the morning. Waves around
1 foot.
.TUESDAY...East wind 15 to 20 knots. Rain in the morning, then
rain likely in the afternoon. Waves 3 to 4 feet building to 4 to
6 feet in the afternoon.
.TUESDAY NIGHT...East wind 15 to 20 knots becoming northeast
10 to 15 knots after midnight. Cloudy. Waves 4 to 6 feet
subsiding to 3 to 4 feet after midnight.
.WEDNESDAY...East wind 10 to 15 knots becoming southeast 5 to
10 knots in the afternoon. Mostly cloudy. Waves 2 to 4 feet
subsiding to 1 to 2 feet in the afternoon.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Thursday through Saturday.