FZUS53 KMKX 190205

NSHMKX



Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

905 PM CDT Mon Aug 18 2025



For waters within five nautical miles of shore on Lake Michigan



LMZ643-191000-

Sheboygan to Port Washington WI-

905 PM CDT Mon Aug 18 2025



.REST OF TONIGHT...Southeast wind 5 to 15 knots becoming 5 to

10 knots after midnight, then veering southwest early in the

morning. Chance of showers just before midnight. Slight chance of

showers early in the morning. Waves 2 to 4 feet. 

.TUESDAY...Northwest wind 10 to 15 knots veering north late in

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

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

.TUESDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves

1 to 3 feet building to 2 to 4 feet in the late evening and

overnight. 

.WEDNESDAY...North wind 10 to 15 knots rising to 15 to 20 knots

late in the morning, then becoming north 15 to 20 knots in the

afternoon. Partly sunny. Waves 3 to 4 feet. 



$$

LMZ644-191000-

Port Washington to North Point Light WI-

905 PM CDT Mon Aug 18 2025



.REST OF TONIGHT...South wind 5 to 10 knots veering southwest

early in the morning. Showers likely and a chance of

thunderstorms just before midnight, then chance of showers and

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

subsiding to 1 to 3 feet early in the morning. 

.TUESDAY...Northwest wind 10 to 15 knots veering north late in

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

Waves 1 to 2 feet. 

.TUESDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves

1 to 2 feet building to 2 to 4 feet in the late evening and

overnight. 

.WEDNESDAY...North wind 15 to 20 knots. Partly sunny. Waves 3 to

4 feet building to 3 to 5 feet late in the afternoon. 



$$

LMZ645-191000-

North Point Light to Wind Point WI-

905 PM CDT Mon Aug 18 2025



.REST OF TONIGHT...South wind 5 to 10 knots veering southwest

after midnight, then rising to 10 to 15 knots early in the

morning. Showers just before midnight. Chance of thunderstorms

through the night. Chance of showers after midnight. Waves 1 to

2 feet. 

.TUESDAY...West wind 10 to 15 knots veering north late in the

afternoon. Cloudy in the morning then becoming partly sunny.

Waves 1 to 2 feet. 

.TUESDAY NIGHT...North wind 10 to 15 knots rising to 15 to

20 knots early in the morning. Partly cloudy. Waves 1 to 3 feet

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

.WEDNESDAY...North wind 15 to 20 knots becoming 10 to 20 knots

late in the afternoon. Partly sunny. Waves 3 to 4 feet building

to 4 to 6 feet in the late morning and afternoon. 



$$

LMZ646-191000-

Wind Point WI to Winthrop Harbor IL-

905 PM CDT Mon Aug 18 2025



.REST OF TONIGHT...South wind 5 to 10 knots becoming southwest

10 to 15 knots early in the morning. Patchy fog through the

night. showers just before midnight. Chance of thunderstorms

through the night. Showers likely after midnight. Waves 1 to

2 feet. 

.TUESDAY...West wind 10 to 15 knots veering north late in the

afternoon. Slight chance of thunderstorms in the morning. Slight

chance of showers through the day. Waves 1 to 2 feet. 

.TUESDAY NIGHT...North wind 10 to 15 knots rising to 15 to

20 knots early in the morning. Partly cloudy. Waves 1 to 2 feet

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

.WEDNESDAY...North wind 15 to 20 knots. Gusts up to 25 knots.

Partly sunny. Waves 3 to 4 feet building to 4 to 6 feet in the

late morning and afternoon. 



$$

See Lake Michigan Open Waters Forecast for Thursday through Saturday.