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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
305 AM CDT Tue Jun 17 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-172100-
Sheboygan to Port Washington WI-
305 AM CDT Tue Jun 17 2025

.EARLY THIS MORNING...South wind 10 to 15 knots. Mostly cloudy
with a 20 percent chance of showers and thunderstorms. Waves 1 to
2 feet.
.TODAY...South wind 10 to 15 knots veering southwest late in the
morning, then becoming southwest 10 to 15 knots early in the
afternoon easing to 5 to 10 knots late in the afternoon. Chance
of showers and thunderstorms in the morning, then slight chance
of showers and thunderstorms in the late morning and afternoon.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots veering west early in the
morning. Slight chance of showers through around midnight. Slight
chance of thunderstorms through the night. Chance of showers
after midnight. Waves around 1 foot.
.WEDNESDAY...Southeast wind 5 to 10 knots backing east late in
the morning, then becoming east 5 to 10 knots early in the
afternoon becoming northeast 10 to 15 knots late in the
afternoon. Rain showers likely in the morning, then showers and
slight chance of thunderstorms in the afternoon. Waves around
1 foot.
.WEDNESDAY NIGHT...North wind 10 to 15 knots backing northwest
early in the morning. Rain showers likely and a chance of
thunderstorms through around midnight, then chance of showers
after midnight. Waves 1 to 3 feet building to 2 to 4 feet late in
the evening, then subsiding to 1 to 2 feet after midnight.

$$
LMZ644-172100-
Port Washington to North Point Light WI-
305 AM CDT Tue Jun 17 2025

.EARLY THIS MORNING...South wind 5 to 10 knots. Partly cloudy
with a 20 percent chance of showers and thunderstorms. Waves
around 1 foot.
.TODAY...Southwest wind 10 to 15 knots easing to 5 to 10 knots
late in the afternoon. Slight chance of showers and
thunderstorms. Waves around 1 foot.
.TONIGHT...Southwest wind 5 to 10 knots. Chance of thunderstorms
through around midnight. Chance of showers through the night.
Slight chance of thunderstorms after midnight. Waves around
1 foot.
.WEDNESDAY...South wind 5 to 10 knots backing southeast late in
the morning, then becoming east 10 to 15 knots early in the
afternoon backing northeast late in the afternoon. Showers likely
in the morning, then showers and a chance of thunderstorms in the
afternoon. Waves around 1 foot.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots backing
northwest after midnight. Showers likely and a chance of
thunderstorms through around midnight, then chance of showers and
slight chance of thunderstorms after midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight.

$$
LMZ645-172100-
North Point Light to Wind Point WI-
305 AM CDT Tue Jun 17 2025

.EARLY THIS MORNING...South wind 5 to 10 knots. Partly cloudy.
Waves around 1 foot.
.TODAY...Southwest wind 10 to 15 knots. Chance of showers and
thunderstorms late in the afternoon. Waves around 1 foot.
.TONIGHT...West wind 5 to 10 knots backing southwest after
midnight. Chance of thunderstorms through around midnight. Chance
of showers through the night. Slight chance of thunderstorms
after midnight. Waves around 1 foot.
.WEDNESDAY...South wind 5 to 10 knots backing southeast late in
the morning, then rising to 10 to 15 knots early in the afternoon
backing northeast late in the afternoon. Showers likely in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves around 1 foot.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots backing
northwest late in the evening, then becoming northwest 10 to
15 knots after midnight. Showers likely and a chance of
thunderstorms through around midnight, then chance of showers and
slight chance of thunderstorms after midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight.

$$
LMZ646-172100-
Wind Point WI to Winthrop Harbor IL-
305 AM CDT Tue Jun 17 2025

.EARLY THIS MORNING...South wind 5 to 10 knots. Partly cloudy.
Waves around 1 foot.
.TODAY...Southwest wind 10 to 15 knots. Slight chance of showers
until late afternoon, then chance of showers and thunderstorms
late in the afternoon. Waves around 1 foot.
.TONIGHT...Southwest wind 5 to 10 knots veering west late in the
evening, then backing southwest after midnight becoming southwest
5 to 10 knots early in the morning. Chance of thunderstorms
through around midnight. Chance of showers through the night.
Slight chance of thunderstorms after midnight. Waves around
1 foot.
.WEDNESDAY...South wind 5 to 10 knots backing southeast late in
the morning, then rising to 10 to 15 knots early in the afternoon
becoming southeast 10 to 15 knots late in the afternoon. Showers
likely in the morning, then showers and a chance of thunderstorms
in the afternoon. Waves around 1 foot.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots backing
northwest late in the evening, then becoming northwest 10 to
15 knots after midnight. Showers likely and a chance of
thunderstorms through around midnight, then chance of showers and
slight chance of thunderstorms after midnight. Waves 1 to 2 feet.

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