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FZUS53 KMKX 182005
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
305 PM CDT Fri Apr 18 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-190900-
Sheboygan to Port Washington WI-
305 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.THROUGH EARLY EVENING...South wind 15 to 20 knots easing to
10 to 15 knots late in the afternoon. Cloudy with a 50 percent
chance of showers and thunderstorms. Waves 3 to 4 feet.
.TONIGHT...West wind 10 to 15 knots veering north with gusts to
around 20 knots late in the evening, then becoming north 10 to
15 knots with gusts to around 20 knots after midnight backing
northwest early in the morning. Chance of thunderstorms through
around midnight. Chance of showers until early morning. Waves
3 to 4 feet subsiding to 1 to 3 feet early in the morning.
.SATURDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
in the late morning and early afternoon, then becoming northwest
5 to 10 knots late in the afternoon. Mostly cloudy. Waves 1 to
2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots backing east late
in the evening, then backing northeast after midnight rising to
10 to 15 knots early in the morning. Partly cloudy. Waves around
1 foot.
.SUNDAY...East wind 10 to 15 knots becoming northeast 15 to
20 knots late in the afternoon. Chance of showers in the
afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the
afternoon.

$$
LMZ644-190900-
Port Washington to North Point Light WI-
305 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 15 to 20 knots easing to
10 to 15 knots late in the afternoon. Mostly cloudy with a
50 percent chance of showers and thunderstorms. Waves 3 to
4 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots veering northwest late in the evening, then veering
north with gusts to around 20 knots after midnight backing
northwest early in the morning. Chance of thunderstorms through
around midnight. Chance of showers until early morning. Waves
2 to 4 feet subsiding to 1 to 2 feet in the late evening and
overnight.
.SATURDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Mostly cloudy. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots backing northeast
in the late evening and overnight. Partly cloudy. Waves around
1 foot.
.SUNDAY...East wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Chance of showers in the afternoon. Waves 1 to 2 feet
building to 2 to 4 feet in the late morning and afternoon.

$$
LMZ645-190900-
North Point Light to Wind Point WI-
305 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 15 to 20 knots. Cloudy with a
40 percent chance of showers and thunderstorms. Waves 3 to
4 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots veering north with gusts to around 20 knots after
midnight. Chance of thunderstorms through around midnight. Chance
of showers until early morning. Slight chance of thunderstorms
after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the
late evening and overnight.
.SATURDAY...Northwest wind 5 to 10 knots veering north early in
the afternoon, then veering east late in the afternoon. Cloudy in
the morning then becoming partly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots backing east late
in the evening, then backing northeast after midnight rising to
10 to 15 knots early in the morning. Partly cloudy. Waves around
1 foot.
.SUNDAY...East wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Slight chance of showers through the day. Waves 1 to
2 feet building to 2 to 4 feet in the late morning and afternoon.

$$
LMZ646-190900-
Wind Point WI to Winthrop Harbor IL-
305 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots rising to
15 to 20 knots late in the afternoon. Cloudy with a 20 percent
chance of showers and thunderstorms. Waves 2 to 4 feet.
.TONIGHT...Southwest wind 15 to 20 knots becoming west 10 to
15 knots with gusts to around 20 knots late in the evening, then
veering northwest with gusts to around 20 knots after midnight
veering north early in the morning. Chance of showers and
thunderstorms until early morning. Waves 2 to 4 feet subsiding to
1 to 2 feet in the late evening and overnight.
.SATURDAY...Northwest wind 5 to 10 knots veering east late in the
afternoon. Mostly cloudy. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots backing east late
in the evening, then backing northeast after midnight rising to
10 to 15 knots early in the morning. Mostly cloudy through around
midnight then becoming partly cloudy. Waves around 1 foot.
.SUNDAY...East wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Slight chance of showers in the morning, then showers
likely in the afternoon. Waves 1 to 2 feet building to 2 to
4 feet in the late morning and afternoon.

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