Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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500
FZUS53 KMKX 220310
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
910 PM CST Fri Nov 21 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-221100-
Sheboygan to Port Washington WI-
910 PM CST Fri Nov 21 2025

.REST OF TONIGHT...North wind 5 to 10 knots. Mostly clear. Waves
around 1 foot.
.SATURDAY...Northwest wind 5 to 10 knots backing southwest 5 to
15 knots late in the morning, then becoming 10 to 15 knots early
in the afternoon rising to 15 to 20 knots late in the afternoon.
Partly sunny. Waves around 1 foot building to 2 to 4 feet late in
the afternoon.
.SATURDAY NIGHT...Southwest wind 15 to 20 knots veering northwest
early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding
to 1 to 2 feet in the late evening and overnight.
.SUNDAY...Northwest wind 15 to 20 knots easing to 10 to 15 knots
late in the morning, then becoming west 5 to 10 knots in the
afternoon. Sunny. Waves around 1 foot.

Wave heights are for ice free areas.

$$
LMZ644-221100-
Port Washington to North Point Light WI-
910 PM CST Fri Nov 21 2025

.REST OF TONIGHT...North wind 5 to 10 knots. Mostly clear. Waves
around 1 foot.
.SATURDAY...Northwest wind 5 to 10 knots backing southwest late
in the morning, then rising to 10 to 15 knots early in the
afternoon rising to 15 to 20 knots late in the afternoon. Mostly
sunny in the morning then becoming mostly cloudy. Waves around
1 foot.
.SATURDAY NIGHT...Southwest wind 15 to 20 knots veering northwest
early in the morning. Mostly clear. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 15 to 20 knots easing to 10 to 15 knots
late in the morning, then becoming west 5 to 10 knots in the
afternoon. Sunny. Waves around 1 foot.

Wave heights are for ice free areas.

$$
LMZ645-221100-
North Point Light to Wind Point WI-
910 PM CST Fri Nov 21 2025

.REST OF TONIGHT...North wind 10 to 15 knots becoming 5 to
15 knots after midnight, then backing northwest 5 to 10 knots
early in the morning. Mostly clear. Waves around 1 foot.
.SATURDAY...Northwest wind 5 to 10 knots backing southwest late
in the morning, then rising to 10 to 15 knots early in the
afternoon rising to 15 to 20 knots late in the afternoon. Mostly
sunny in the morning then becoming mostly cloudy. Waves around
1 foot.
.SATURDAY NIGHT...Southwest wind 15 to 20 knots veering northwest
early in the morning. Mostly clear. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 15 to 20 knots easing to 10 to 15 knots
late in the morning, then becoming west 5 to 10 knots in the
afternoon. Sunny. Waves around 1 foot.

Wave heights are for ice free areas.

$$
LMZ646-221100-
Wind Point WI to Winthrop Harbor IL-
910 PM CST Fri Nov 21 2025

.REST OF TONIGHT...North wind 10 to 15 knots easing to 5 to
10 knots early in the morning. Partly cloudy late in the evening
then clearing. Waves around 1 foot.
.SATURDAY...Northwest wind 5 to 10 knots backing southwest late
in the morning, then rising to 10 to 15 knots in the afternoon.
Sunny in the morning then becoming partly sunny. Waves 1 to
2 feet.
.SATURDAY NIGHT...Southwest wind 15 to 20 knots veering northwest
early in the morning. Mostly clear. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 10 to 20 knots becoming 10 to 15 knots
late in the morning, then becoming west 5 to 10 knots in the
afternoon. Sunny. Waves around 1 foot.

Wave heights are for ice free areas.

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