FZUS53 KLOT 041453

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

953 AM CDT Tue Aug 4 2026



For waters within five nautical miles of shore on Lake Michigan



Waves are provided as a range of significant wave heights, which

is the average of the highest 1/3 of the waves, along with the

average height of the highest 10 percent of the waves which will

occasionally be encountered.



LMZ740>742-042130-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

953 AM CDT Tue Aug 4 2026



.REST OF TODAY...Southwest winds around 10 kt becoming southeast 

this afternoon. Partly cloudy. Waves around 1 ft. 

.TONIGHT...South winds 10 to 15 kt becoming southwest overnight.

Slight chance of showers and thunderstorms. Waves around 1 ft. 

.WEDNESDAY...Southwest winds around 10 kt becoming northwest

toward evening. Showers likely and chance of thunderstorms. Waves

around 1 ft. 

.WEDNESDAY NIGHT...North winds around 10 kt. Showers and a chance

of thunderstorms. Waves around 1 ft. 



$$



LMZ743>745-042130-

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

Burns Harbor to Michigan City IN-

953 AM CDT Tue Aug 4 2026



.REST OF TODAY...South winds around 10 kt becoming southeast

this afternoon. Mostly sunny. Waves around 1 ft. 

.TONIGHT...South winds around 10 kt. Partly cloudy. Waves around

1 ft. 

.WEDNESDAY...Southwest winds around 10 kt. Chance of showers in

the morning, then chance of showers and thunderstorms in the

afternoon. Waves around 1 ft. 

.WEDNESDAY NIGHT...West winds around 10 kt becoming southwest

overnight. Showers and a chance of thunderstorms. Waves around 1 

ft. 



$$



Borchardt