FZUS53 KLOT 190739

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

239 AM CDT Thu Mar 19 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>742-191515-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

239 AM CDT Thu Mar 19 2026



.TODAY...Southeast winds around 5 kt becoming east at around 10 

kt this afternoon. Partly cloudy. Waves 1 to 2 ft

.TONIGHT...Southeast winds 10 to 15 kt becoming southwest

overnight. Increasing cloudiness. Waves 1 to 2 ft. 

.FRIDAY...West winds 10 to 15 kt becoming northwest in the

afternoon. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY NIGHT...North winds around 10 kt. Mostly cloudy. Waves

1 to 2 ft.  



$$



LMZ743>745-191515-

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

Burns Harbor to Michigan City IN-

239 AM CDT Thu Mar 19 2026



.TODAY...Southeast winds around 5 kt becoming northeast at around 

10 kt this afternoon. Partly cloudy. Waves 1 to 2 ft.

.TONIGHT...East winds 10 to 15 kt becoming south 15 to 20 kt

overnight. Increasing cloudiness. Waves 1 to 2 ft. 

.FRIDAY...Southwest winds 15 to 20 kt becoming northwest 10 to

15 kt in the afternoon. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY NIGHT...North winds 10 to 15 kt diminishing to around

10 kt. Mostly cloudy. Waves 1 to 2 ft. 



$$



Borchardt