FZUS53 KLOT 221218

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

718 AM CDT Sun Mar 22 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>742-230000-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

718 AM CDT Sun Mar 22 2026



...GALE WARNING IN EFFECT THROUGH THIS EVENING...



.REST OF TODAY...North gales to 35 kt. Patchy fog. Slight chance 

of rain in the afternoon. Waves 4 to 7 ft occasionally to 9 ft 

building to 8 to 11 ft occasionally to 14 ft. 

.TONIGHT...North winds to 30 kt with occasional gales to 35 kt in

the late evening, diminishing to 20 to 25 kt overnight. Mostly 

cloudy. Waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8

ft occasionally to 10 ft. 

.MONDAY...North winds 15 to 25 kt becoming northeast and

diminishing to 10 to 15 kt. Mostly cloudy in the morning then

clearing. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to

5 ft. 

.MONDAY NIGHT...East winds around 10 kt becoming south overnight.

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

2 to 4 ft subsiding to 1 to 2 ft.  



$$



LMZ743>745-230000-

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

Burns Harbor to Michigan City IN-

718 AM CDT Sun Mar 22 2026



...GALE WARNING IN EFFECT FROM 11 AM CDT THIS MORNING THROUGH

THIS EVENING...



.REST OF TODAY...North winds 15 to 25 kt increasing to 35 kt 

gales later this morning. Patchy fog. Chance of rain in the 

afternoon. Waves 3 to 5 ft building to 8 to 11 ft occasionally to 

14 ft. 

.TONIGHT...North winds to 30 kt with occasional gales to 35 kt in

the late evening diminishing to 20 to 25 kt overnight. Mostly 

cloudy. Waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9

ft occasionally to 12 ft. 

.MONDAY...North winds 15 to 25 kt diminishing to 10 to 15 kt.

Mostly cloudy in the morning, then becoming partly cloudy. Waves

5 to 8 ft occasionally to 10 ft subsiding to 3 to 6 ft. 

.MONDAY NIGHT...Northeast winds around 10 kt becoming southeast

overnight. Partly cloudy in the evening, then becoming mostly

cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.  



$$

DK