FZUS53 KMKX 201610

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Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

1110 AM CDT Mon Apr 20 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ643-202200-

Sheboygan to Port Washington WI-

1110 AM CDT Mon Apr 20 2026



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

THROUGH TUESDAY MORNING...



.REST OF TODAY...South wind 15 to 20 knots. Mostly sunny. Waves

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

.TONIGHT...South wind 15 to 25 knots becoming 15 to 20 knots late

in the evening, then becoming south 15 to 20 knots after

midnight. Mostly cloudy. Waves 3 to 5 feet building to 4 to

6 feet late in the evening, then subsiding to 3 to 5 feet after

midnight subsiding to 3 to 4 feet early in the morning. 

.TUESDAY...South wind 10 to 15 knots with gusts to around

20 knots veering southwest late in the morning, then backing

south early in the afternoon backing southeast late in the

afternoon. Mostly sunny. Waves 3 to 4 feet subsiding to 1 to

3 feet late in the afternoon. 

.TUESDAY NIGHT...East wind 5 to 10 knots becoming northeast 10 to

15 knots in the late evening and early morning, then becoming

north 5 to 10 knots early in the morning. Mostly clear. Waves

1 to 2 feet. 



$$

LMZ644-202200-

Port Washington to North Point Light WI-

1110 AM CDT Mon Apr 20 2026



.REST OF TODAY...Southeast wind 10 to 15 knots rising to 15 to

20 knots late in the afternoon. Mostly sunny. Waves 1 to 3 feet

building to 2 to 4 feet late in the afternoon. 

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

early in the morning. Mostly cloudy. Waves 3 to 4 feet. 

.TUESDAY...South wind 10 to 15 knots veering southwest late in

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

afternoon backing southeast late in the afternoon. Partly sunny.

Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning

and afternoon. 

.TUESDAY NIGHT...East wind 5 to 10 knots backing north after

midnight. Partly cloudy. Waves 1 to 2 feet. 



$$

LMZ645-202200-

North Point Light to Wind Point WI-

1110 AM CDT Mon Apr 20 2026



.REST OF TODAY...Southeast wind 10 to 15 knots. Gusts up to

20 knots late in the afternoon. Mostly sunny. Waves 1 to 3 feet. 

.TONIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 2 to

4 feet. 

.TUESDAY...Southwest wind 10 to 20 knots becoming 10 to 15 knots

in the late morning and early afternoon, then backing south late

in the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to

1 to 2 feet in the afternoon. 

.TUESDAY NIGHT...Southwest wind 5 to 10 knots veering northwest

late in the evening, then veering north after midnight becoming

north 5 to 10 knots early in the morning. Partly cloudy. Waves

around 1 foot. 



$$

LMZ646-202200-

Wind Point WI to Winthrop Harbor IL-

1110 AM CDT Mon Apr 20 2026



.REST OF TODAY...Southeast wind 10 to 15 knots. Mostly sunny.

Waves 1 to 3 feet. 

.TONIGHT...Southeast wind 10 to 15 knots veering south with gusts

to around 20 knots late in the evening, then becoming south 10 to

15 knots with gusts to around 20 knots after midnight rising to

15 to 20 knots early in the morning. Mostly cloudy. Waves 1 to

3 feet building to 2 to 4 feet in the late evening and overnight.

.TUESDAY...Southwest wind 15 to 20 knots easing to 10 to 15 knots

with gusts to around 20 knots late in the morning, then becoming

southwest 10 to 15 knots in the afternoon. Partly sunny. Waves

2 to 4 feet subsiding to 1 to 2 feet in the late morning and

afternoon. 

.TUESDAY NIGHT...Southwest wind 5 to 10 knots veering north early

in the morning. Partly cloudy. Waves around 1 foot. 



$$

See Lake Michigan Open Waters Forecast for Wednesday through Friday.