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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
611 PM CDT Sun Oct 12 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-130400-
Sheboygan to Port Washington WI-
611 PM CDT Sun Oct 12 2025

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

.TONIGHT...Southeast wind 15 to 20 knots easing to 10 to 15 knots
late in the evening, then veering south after midnight. Partly
cloudy. Waves 2 to 4 feet.
.MONDAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming south 10 to 15 knots in the late morning and early
afternoon, then becoming southwest 5 to 10 knots late in the
afternoon. Scattered showers in the morning. Isolated showers in
the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in
the afternoon.
.MONDAY NIGHT...West wind 5 to 10 knots veering northwest late in
the evening, then becoming north 10 to 15 knots after midnight
rising to 15 to 20 knots early in the morning. Partly cloudy.
Waves 1 to 2 feet building to 2 to 4 feet early in the morning.
.TUESDAY...North wind 15 to 20 knots easing to 10 to 15 knots
with gusts to around 20 knots early in the afternoon, then rising
to 15 to 20 knots late in the afternoon. Partly sunny. Waves 2 to
4 feet.

Wave heights are for ice free areas.

$$
LMZ644-130400-
Port Washington to North Point Light WI-
611 PM CDT Sun Oct 12 2025

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

.TONIGHT...Southeast wind 10 to 15 knots veering south early in
the morning. Gusts up to 20 knots. Partly cloudy through around
midnight then becoming mostly cloudy. Waves 2 to 4 feet.
.MONDAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming south 10 to 15 knots late in the morning, then easing to
5 to 10 knots early in the afternoon veering southwest late in
the afternoon. Scattered showers in the morning. Waves 2 to
4 feet subsiding to 1 to 2 feet in the afternoon.
.MONDAY NIGHT...Northwest wind 5 to 10 knots becoming north 10 to
15 knots after midnight. Partly cloudy. Waves 1 to 2 feet.
.TUESDAY...North wind 15 to 20 knots. Partly sunny. Waves 3 to
4 feet.

Wave heights are for ice free areas.

$$
LMZ645-130400-
North Point Light to Wind Point WI-
611 PM CDT Sun Oct 12 2025

.TONIGHT...Southeast wind 10 to 15 knots veering south early in
the morning. Gusts up to 20 knots. Partly cloudy. Waves 2 to
4 feet subsiding to 1 to 3 feet late in the evening, then
building to 2 to 4 feet after midnight.
.MONDAY...South wind 10 to 15 knots easing to 5 to 10 knots late
in the afternoon. Isolated showers in the morning. Waves 2 to
4 feet subsiding to 1 to 2 feet in the late morning and
afternoon.
.MONDAY NIGHT...Northwest wind 5 to 10 knots veering north 5 to
15 knots after midnight, then rising to 10 to 20 knots early in
the morning. Mostly cloudy through around midnight then becoming
partly cloudy. Waves around 1 foot.
.TUESDAY...North wind 15 to 20 knots. Partly sunny. Waves 3 to
4 feet building to 4 to 6 feet in the late morning and afternoon.

Wave heights are for ice free areas.

$$
LMZ646-130400-
Wind Point WI to Winthrop Harbor IL-
611 PM CDT Sun Oct 12 2025

.TONIGHT...Southeast wind 10 to 15 knots veering south early in
the morning. Gusts up to 20 knots. Partly cloudy. Waves 1 to
3 feet building to 2 to 4 feet after midnight.
.MONDAY...South wind 10 to 15 knots easing to 5 to 10 knots late
in the afternoon. Mostly cloudy. Waves 2 to 4 feet subsiding to
1 to 2 feet in the late morning and afternoon.
.MONDAY NIGHT...Northwest wind 5 to 10 knots veering north late
in the evening, then becoming 5 to 15 knots after midnight
becoming 10 to 15 knots early in the morning. Mostly cloudy
through around midnight then becoming partly cloudy. Waves around
1 foot.
.TUESDAY...North wind 15 to 20 knots. Partly sunny. Waves 3 to
4 feet building to 4 to 6 feet.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Wednesday through Friday.