FZUS53 KLOT 231435
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
935 AM CDT Sun Aug 23 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.

LMZ740-232145-
Winthrop Harbor to Wilmette Harbor IL-
935 AM CDT Sun Aug 23 2026

.REST OF TODAY...Northwest winds 10 to 20 kt becoming northeast 
10 to 15 kt in the afternoon. Sunny late in the morning, then 
becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. 
.TONIGHT...Northeast winds 5 to 10 kt becoming northwest around 5
kt. Partly cloudy in the evening, then becoming mostly clear. 
Waves 1 to 3 ft. 
.MONDAY...Northwest winds around 10 kt becoming northeast in the 
afternoon. Mostly sunny. Waves 1 to 3 ft. 
.MONDAY NIGHT...Southeast winds around 5 kt becoming southwest 
overnight. Mostly clear. Waves 1 to 2 ft.  

$$

LMZ741>743-232145-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
935 AM CDT Sun Aug 23 2026

.REST OF TODAY...Northwest winds 10 to 20 kt becoming northeast 
10 to 15 kt this afternoon. Sunny late in the morning, then becoming 
partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft by late
afternoon
.TONIGHT...Northeast winds around 10 kt becoming northwest 5 to 10
kt. Partly cloudy in the evening, then becoming clear. Waves 1 to
3 ft. 
.MONDAY...West winds 5 to 10 kt becoming northeast in the 
afternoon. Mostly sunny. Waves 1 to 3 ft. 
.MONDAY NIGHT...East winds around 10 kt becoming southwest 
overnight. Partly cloudy in the evening, then becoming mostly clear. 
Waves 1 to 2 ft.  

$$

LMZ744-745-232145-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
935 AM CDT Sun Aug 23 2026

.REST OF TODAY...Northwest winds 10 to 20 kt becoming north this
afternoon. Slight chance of showers late in the morning. Waves 3 
to 5 ft. 
.TONIGHT...North winds around 10 kt becoming northwest. Mostly
clear. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.MONDAY...West winds around 10 kt becoming north in the
afternoon. Mostly sunny. Waves 1 to 3 ft. 
.MONDAY NIGHT...East winds around 5 kt becoming south overnight.
Mostly clear. Waves 1 to 2 ft.  

$$

- Izzi