Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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FZUS53 KMKX 121010
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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
510 AM CDT Sun Oct 12 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-121600-
Sheboygan to Port Washington WI-
510 AM CDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH MONDAY AFTERNOON...

.TODAY...Southeast wind 10 to 15 knots rising to 15 to 20 knots
late in the morning, then becoming southeast 15 to 20 knots in
the afternoon. Gusts up to 25 knots. Partly sunny. Waves 3 to
4 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south early in
the morning. Partly cloudy. Waves 3 to 5 feet.
.MONDAY...South wind 10 to 15 knots easing to 5 to 10 knots late
in the afternoon. Slight chance of showers through the day. Waves
3 to 4 feet.
.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.

$$
LMZ644-121600-
Port Washington to North Point Light WI-
510 AM CDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH MONDAY AFTERNOON...

.TODAY...Southeast wind 10 to 15 knots rising to 15 to 20 knots
with gusts to around 25 knots in the late morning and early
afternoon, then becoming southeast 15 to 20 knots with gusts to
around 25 knots late in the afternoon. Mostly cloudy in the
morning then becoming mostly sunny. Waves 3 to 4 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south after
midnight, then easing to 10 to 15 knots early in the morning.
Partly cloudy. Waves 3 to 4 feet.
.MONDAY...South wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then becoming south 5 to 10 knots late in the
afternoon. Slight chance of showers through the day. Waves 3 to
4 feet subsiding to 1 to 2 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
becoming 10 to 20 knots early in the morning. Mostly cloudy
through around midnight then becoming partly cloudy. Waves 1 to
2 feet.

$$
LMZ645-121600-
North Point Light to Wind Point WI-
510 AM CDT Sun Oct 12 2025

.TODAY...Southeast wind 10 to 15 knots becoming southeast 10 to
15 knots with gusts to around 20 knots late in the morning, then
rising to 15 to 20 knots early in the afternoon becoming
southeast 15 to 20 knots late in the afternoon. Partly sunny.
Waves 3 to 4 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south after
midnight, then easing to 10 to 15 knots early in the morning.
Partly cloudy. Waves 3 to 4 feet.
.MONDAY...South wind 10 to 15 knots easing to 5 to 10 knots late
in the afternoon. Slight chance of showers. Waves 2 to 4 feet
subsiding to 1 to 2 feet in the afternoon.
.MONDAY NIGHT...Southwest wind 5 to 10 knots veering northwest
late in the evening, then veering north 5 to 15 knots after
midnight rising to 10 to 20 knots early in the morning. Mostly
cloudy through around midnight then becoming partly cloudy. Waves
around 1 foot.

$$
LMZ646-121600-
Wind Point WI to Winthrop Harbor IL-
510 AM CDT Sun Oct 12 2025

.TODAY...Southeast wind 10 to 15 knots becoming southeast 10 to
15 knots with gusts to around 20 knots late in the morning, then
rising to 15 to 20 knots early in the afternoon becoming
southeast 15 to 20 knots late in the afternoon. Partly sunny.
Waves 2 to 4 feet.
.TONIGHT...Southeast wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots late in the evening, then
veering south after midnight easing to 10 to 15 knots early in
the morning. Partly cloudy. Waves 2 to 4 feet.
.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 afternoon.
.MONDAY NIGHT...South wind 5 to 10 knots veering northwest late
in the evening, then veering north 5 to 15 knots after midnight
rising to 10 to 20 knots early in the morning. Mostly cloudy
through around midnight then becoming partly cloudy. Waves around
1 foot.

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