FZUS53 KLOT 191939

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

239 PM 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>742-200315-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

239 PM CDT Thu Mar 19 2026



.LATE THIS AFTERNOON...Northeast winds around 10 kt. Mostly 

sunny. Waves 1 to 2 ft. 

.TONIGHT...Northeast winds 5 to 10 kt becoming southwest late. 

Partly cloudy in the evening, then becoming mostly cloudy. Waves 1

to 2 ft. 

.FRIDAY...Southwest winds 10 to 15 kt becoming northeast in the

afternoon. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY NIGHT...North winds around 10 kt becoming east overnight.

Mostly cloudy. Waves 1 to 2 ft. 

.SATURDAY...Southeast winds around 10 kt becoming south in the

afternoon. Partly cloudy. Waves 1 to 2 ft.  



$$



LMZ743>745-200315-

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

Burns Harbor to Michigan City IN-

239 PM CDT Thu Mar 19 2026



.LATE THIS AFTERNOON...Northeast winds around 10 kt. Mostly

sunny. Waves 1 to 2 ft. 

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

20 kt. Partly cloudy in the evening, then becoming mostly cloudy.

Waves 1 to 2 ft. 

.FRIDAY...Southwest winds 10 to 15 kt becoming north in the

afternoon. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY NIGHT...North winds around 10 kt becoming northeast.

Mostly cloudy. Waves 1late to 2 ft. 

.SATURDAY...Southeast winds around 10 kt becoming south in the

afternoon. Partly cloudy in the morning then clearing. Waves 1 to

2 ft.  



$$



DK