Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
1105 AM CDT Wed Mar 12 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-122200-
Sheboygan to Port Washington WI-
1105 AM CDT Wed Mar 12 2025

.REST OF TODAY...Southeast wind 10 to 15 knots becoming east 5 to
10 knots late in the afternoon. Mostly sunny. Waves 3 to 4 feet.
.TONIGHT...Northeast wind 5 knots veering east after midnight,
then backing northeast early in the morning. Mostly clear. Waves
around 1 foot.
.THURSDAY...Northeast wind 5 knots becoming east late in the
morning, then veering southeast early in the afternoon becoming
southeast 5 to 10 knots late in the afternoon. Mostly sunny.
Waves around 1 foot.
.THURSDAY NIGHT...Southeast wind 5 to 10 knots rising to 10 to
15 knots after midnight, then becoming southeast 10 to 15 knots
early in the morning. Partly cloudy through around midnight then
becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning.

Wave heights are for ice free areas.

$$
LMZ644-122200-
Port Washington to North Point Light WI-
1105 AM CDT Wed Mar 12 2025

.REST OF TODAY...East wind 10 to 15 knots easing to 5 to 10 knots
late in the afternoon. Mostly sunny. Waves 3 to 4 feet.
.TONIGHT...Northeast wind 5 knots. Clear. Waves around 1 foot.
.THURSDAY...Northeast wind 5 knots becoming east late in the
morning, then becoming east 5 to 10 knots in the afternoon.
Mostly sunny. Waves around 1 foot.
.THURSDAY NIGHT...East wind 5 to 10 knots becoming southeast
10 to 15 knots after midnight. Partly cloudy. Waves 1 to 2 feet
building to 2 to 4 feet early in the morning.

Wave heights are for ice free areas.

$$
LMZ645-122200-
North Point Light to Wind Point WI-
1105 AM CDT Wed Mar 12 2025

.REST OF TODAY...East wind 10 to 15 knots becoming northeast 5 to
10 knots late in the afternoon. Sunny. Waves 3 to 4 feet.
.TONIGHT...Northeast wind 5 to 10 knots. Clear. Waves 1 to
2 feet.
.THURSDAY...Northeast wind 5 to 10 knots veering east late in the
morning, then becoming east 5 to 10 knots in the afternoon.
Mostly sunny. Waves around 1 foot.
.THURSDAY NIGHT...Northeast wind 5 to 10 knots veering east late
in the evening, then becoming southeast 10 to 15 knots after
midnight. Partly cloudy. Waves 1 to 2 feet building to 2 to
4 feet early in the morning.

Wave heights are for ice free areas.

$$
LMZ646-122200-
Wind Point WI to Winthrop Harbor IL-
1105 AM CDT Wed Mar 12 2025

.REST OF TODAY...East wind 10 to 15 knots becoming northeast 5 to
10 knots late in the afternoon. Sunny. Waves 3 to 4 feet.
.TONIGHT...Northeast wind 5 to 10 knots. Clear. Waves 1 to
2 feet.
.THURSDAY...Northeast wind 5 to 10 knots veering east late in the
morning, then becoming east 5 to 10 knots early in the afternoon
backing northeast late in the afternoon. Sunny. Waves around
1 foot.
.THURSDAY NIGHT...Northeast wind 5 to 10 knots veering east 5 to
15 knots late in the evening, then veering southeast 10 to
15 knots after midnight. Partly cloudy. Waves 1 to 2 feet
building to 2 to 4 feet early in the morning.

Wave heights are for ice free areas.

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