FZUS53 KMKX 231210

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Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

710 AM CDT Thu Apr 23 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ643-231600-

Sheboygan to Port Washington WI-

710 AM CDT Thu Apr 23 2026



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

THROUGH FRIDAY AFTERNOON...



.TODAY...South wind 10 to 15 knots rising to 15 to 20 knots in

the afternoon. Sunny in the morning then becoming partly sunny.

Waves 1 to 2 feet building to 3 to 4 feet in the afternoon. 

.TONIGHT...South wind 15 to 20 knots. Rain showers and a chance

of thunderstorms after midnight. Waves 4 to 6 feet. 

.FRIDAY...South wind 15 to 20 knots easing to 10 to 15 knots late

in the morning, then veering southwest early in the afternoon

veering west late in the afternoon. Chance of thunderstorms in

the morning. Rain showers likely through the day. Slight chance

of thunderstorms in the afternoon. Waves 4 to 6 feet subsiding to

3 to 5 feet late in the morning, then subsiding to 3 to 4 feet in

the afternoon. 

.FRIDAY NIGHT...Northwest wind 10 to 15 knots veering north after

midnight, then backing northwest early in the morning. Chance of

showers through around midnight. Waves 2 to 4 feet subsiding to

1 to 2 feet in the late evening and overnight. 



$$

LMZ644-231600-

Port Washington to North Point Light WI-

710 AM CDT Thu Apr 23 2026



.TODAY...South wind 5 to 10 knots rising to 10 to 15 knots late

in the morning, then becoming southeast 15 to 20 knots in the

afternoon. Sunny in the morning then becoming partly sunny. Waves

1 to 2 feet building to 3 to 4 feet in the afternoon. 

.TONIGHT...South wind 15 to 20 knots. Rain showers and a chance

of thunderstorms after midnight. Waves 3 to 4 feet. 

.FRIDAY...South wind 10 to 15 knots veering west late in the

afternoon. Chance of thunderstorms in the morning. Rain showers

likely through the day. Slight chance of thunderstorms in the

afternoon. Waves 3 to 4 feet subsiding to 1 to 2 feet late in the

afternoon. 

.FRIDAY NIGHT...Northwest wind 10 to 15 knots. Partly cloudy.

Waves 1 to 2 feet. 



$$

LMZ645-231600-

North Point Light to Wind Point WI-

710 AM CDT Thu Apr 23 2026



.TODAY...South wind 5 to 10 knots rising to 10 to 15 knots late

in the morning, then becoming south 10 to 15 knots early in the

afternoon becoming southeast 15 to 20 knots late in the

afternoon. Sunny in the morning then becoming partly sunny. Waves

1 to 2 feet building to 2 to 4 feet late in the afternoon. 

.TONIGHT...South wind 15 to 20 knots. Rain showers likely and a

chance of thunderstorms after midnight. Waves 2 to 4 feet. 

.FRIDAY...South wind 10 to 15 knots veering southwest late in the

afternoon. Chance of thunderstorms in the morning. Rain showers

likely through the day. Slight chance of thunderstorms in the

afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the

afternoon. 

.FRIDAY NIGHT...West wind 10 to 15 knots veering north after

midnight. Partly cloudy. Waves 1 to 2 feet. 



$$

LMZ646-231600-

Wind Point WI to Winthrop Harbor IL-

710 AM CDT Thu Apr 23 2026



.TODAY...South wind 5 to 10 knots rising to 10 to 15 knots late

in the morning, then becoming south 10 to 15 knots early in the

afternoon becoming southeast 15 to 20 knots late in the

afternoon. Sunny in the morning then becoming partly sunny. Waves

1 to 2 feet building to 2 to 4 feet late in the afternoon. 

.TONIGHT...South wind 15 to 20 knots easing to 10 to 15 knots in

the late evening and overnight. Rain showers likely and a chance

of thunderstorms after midnight. Waves 2 to 4 feet. 

.FRIDAY...South wind 10 to 15 knots veering southwest late in the

afternoon. Chance of thunderstorms in the morning. Rain showers

likely through the day. Slight chance of thunderstorms in the

afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet in the

afternoon. 

.FRIDAY NIGHT...Northwest wind 10 to 15 knots veering north early

in the morning. Partly cloudy. Waves 1 to 2 feet. 



$$

See Lake Michigan Open Waters Forecast for Saturday through Monday.