FZUS53 KLOT 191414

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

914 AM CDT Tue Aug 19 2025



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>742-192115-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

914 AM CDT Tue Aug 19 2025



...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE

WEDNESDAY NIGHT...



.REST OF TODAY...North winds 10 to 20 kt. Mostly cloudy. Waves 1 

to 2 ft building to 2 to 4 ft. 

.TONIGHT...North winds 15 to 20 kt. A chance of sprinkles, mainly 

after midnight. Waves 2 to 4 ft building to 3 to 6 ft occasionally

to 8 ft.

.WEDNESDAY...Northeast winds 15 to 25 kt. A chance of sprinkles 

in the morning. Waves 3 to 6 ft occasionally to 8 ft. 

.WEDNESDAY NIGHT...North winds 15 to 25 kt becoming northeast

10 to 20 kt overnight. Mostly clear. Waves 3 to 6 ft occasionally

to 8 ft.  



$$



LMZ743>745-192115-

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

Burns Harbor to Michigan City IN-

914 AM CDT Tue Aug 19 2025



...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE

WEDNESDAY NIGHT...



.REST OF TODAY...West winds 10 to 15 kt becoming north 15 to 20 

kt in the afternoon. Waves 1 to 2 ft building to 2 to 4 ft. 

.TONIGHT...North winds 15 to 20 kt. A chance of sprinkles after

midnight. Waves 3 to 5 ft building to 3 to 6 ft occasionally to 8

ft.

.WEDNESDAY...North winds 15 to 25 kt. A chance of sprinkles in 

the morning. Waves 3 to 6 ft occasionally to 8 ft. 

.WEDNESDAY NIGHT...North winds 15 to 25 kt becoming northeast and

diminishing to 10 to 15 kt overnight. Mostly clear. Waves 3 to

6 ft occasionally to 8 ft.  



$$

Doom