Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
705 PM CDT Thu May 22 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-230400-
Sheboygan to Port Washington WI-
705 PM CDT Thu May 22 2025

.TONIGHT...North wind 5 to 10 knots backing northwest after
midnight, then becoming northwest 5 to 10 knots early in the
morning. Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Northwest wind 10 to 15 knots becoming 5 to 15 knots
late in the morning, then veering north 5 to 10 knots early in
the afternoon veering east late in the afternoon. Partly sunny.
Waves around 1 foot.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots becoming north late
in the evening, then backing northwest after midnight rising to
5 to 10 knots early in the morning. Mostly cloudy through around
midnight then becoming partly cloudy. Waves around 1 foot.
.SATURDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Mostly sunny. Waves around 1 foot.

$$
LMZ644-230400-
Port Washington to North Point Light WI-
705 PM CDT Thu May 22 2025

.TONIGHT...North wind 5 to 10 knots backing northwest late in the
evening, then becoming northwest 5 to 10 knots after midnight.
Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Partly sunny. Waves around 1 foot.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots becoming east late
in the evening, then backing north after midnight backing
northwest early in the morning. Partly cloudy. Waves around
1 foot.
.SATURDAY...Northwest wind 5 knots becoming northeast late in the
morning, then veering east early in the afternoon becoming east
5 to 10 knots late in the afternoon. Mostly sunny. Waves around
1 foot.

$$
LMZ645-230400-
North Point Light to Wind Point WI-
705 PM CDT Thu May 22 2025

.TONIGHT...North wind 5 to 10 knots backing northwest after
midnight, then becoming northwest 5 to 10 knots early in the
morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late evening and overnight.
.FRIDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Partly sunny. Waves around 1 foot.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots becoming east late
in the evening, then backing north after midnight becoming north
5 knots early in the morning. Partly cloudy. Waves around 1 foot.
.SATURDAY...North wind 5 to 10 knots veering east late in the
afternoon. Mostly sunny. Waves around 1 foot.

$$
LMZ646-230400-
Wind Point WI to Winthrop Harbor IL-
705 PM CDT Thu May 22 2025

.TONIGHT...North wind 5 to 10 knots backing northwest after
midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late evening and overnight.
.FRIDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Mostly sunny. Waves around 1 foot.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots easing to 5 knots
late in the evening, then backing north after midnight becoming
north 5 knots early in the morning. Partly cloudy. Waves around
1 foot.
.SATURDAY...North wind 5 to 10 knots veering east late in the
afternoon. Mostly sunny. Waves around 1 foot.

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