Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
505 PM CDT Mon Apr 7 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-080400-
Sheboygan to Port Washington WI-
505 PM CDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.TONIGHT...North wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then backing northwest 10 to 20 knots early in
the morning. Scattered flurries in the evening. Waves 5 to 7 feet
subsiding to 3 to 4 feet.
.TUESDAY...Northwest wind 10 to 15 knots becoming north 5 to
10 knots early in the afternoon, then veering southeast late in
the afternoon. Sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...South wind 10 to 15 knots. Mostly clear through
around midnight then becoming mostly cloudy. Waves 1 to 2 feet
building to 2 to 4 feet after midnight.
.WEDNESDAY...South wind 15 to 20 knots backing southeast 10 to
20 knots early in the afternoon, then becoming 15 to 20 knots
late in the afternoon. Gusts up to 25 knots. Chance of rain and
snow showers through the day. Waves 3 to 4 feet building to 5 to
7 feet.

$$
LMZ644-080400-
Port Washington to North Point Light WI-
505 PM CDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...

.TONIGHT...North wind 15 to 25 knots easing to 10 to 20 knots
late in the evening, then becoming 15 to 20 knots after midnight
easing to 10 to 15 knots early in the morning. Scattered flurries
in the evening. Waves 6 to 8 feet subsiding to 4 to 6 feet.
.TUESDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
late in the morning, then veering northeast early in the
afternoon becoming southeast 10 to 15 knots late in the
afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in
the late morning and afternoon.
.TUESDAY NIGHT...Southeast wind 10 to 15 knots veering south
after midnight. Mostly clear through around midnight then
becoming mostly cloudy. Waves 1 to 2 feet.
.WEDNESDAY...South wind 10 to 20 knots becoming 15 to 20 knots
late in the morning, then backing southeast 10 to 20 knots early
in the afternoon becoming 15 to 20 knots late in the afternoon.
Chance of rain and snow showers in the morning, then showers
likely in the afternoon. Waves 3 to 4 feet building to 5 to
7 feet.

$$
LMZ645-080400-
North Point Light to Wind Point WI-
505 PM CDT Mon Apr 7 2025

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

.TONIGHT...North wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then easing to 10 to 15 knots early in the
morning. Scattered flurries in the evening. Waves 7 to 9 feet
subsiding to 3 to 5 feet.
.TUESDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
late in the morning, then veering northeast early in the
afternoon veering southeast late in the afternoon. Sunny. Waves
3 to 4 feet subsiding to 1 to 2 feet in the afternoon.
.TUESDAY NIGHT...Southeast wind 10 to 15 knots veering south
after midnight. Mostly clear through around midnight then
becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning.
.WEDNESDAY...South wind 15 to 20 knots backing southeast 10 to
20 knots early in the afternoon, then becoming 15 to 20 knots
late in the afternoon. Chance of snow showers in the morning.
Chance of showers through the day. Waves 3 to 4 feet building to
4 to 6 feet.

$$
LMZ646-080400-
Wind Point WI to Winthrop Harbor IL-
505 PM CDT Mon Apr 7 2025

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

.TONIGHT...North wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then easing to 10 to 15 knots early in the
morning. Scattered flurries in the evening. Waves 7 to 9 feet
subsiding to 3 to 5 feet.
.TUESDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
late in the morning, then veering northeast early in the
afternoon veering southeast late in the afternoon. Sunny. Waves
3 to 4 feet subsiding to 1 to 2 feet in the afternoon.
.TUESDAY NIGHT...Southeast wind 10 to 15 knots veering south
early in the morning. Mostly clear through around midnight then
becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning.
.WEDNESDAY...South wind 15 to 20 knots backing southeast late in
the afternoon. Chance of showers in the morning. Slight chance of
snow showers through the day. Rain showers in the afternoon.
Waves 3 to 4 feet building to 4 to 6 feet.

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