733
FZUS53 KLOT 311440
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
940 AM CDT Sun Aug 31 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>742-312115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
940 AM CDT Sun Aug 31 2025

.REST OF TODAY...Variable winds around 5 kt becoming east around
10 kt in the afternoon. Mostly sunny. Waves around 1 ft.
.TONIGHT...Northeast winds 5 to 10 kt becoming east overnight.
Mostly clear. Waves around 1 ft.
.MONDAY...Southeast winds 5 to 10 kt becoming east in the
afternoon. Sunny. Waves around 1 ft.
.MONDAY NIGHT...Northeast winds 5 to 10 kt. Mostly clear. Waves
around 1 ft.

$$

LMZ743>745-312115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
940 AM CDT Sun Aug 31 2025

.REST OF TODAY...Variable winds around 5 kt becoming northeast
around 10 kt in the afternoon. Mostly sunny. Waves around 1 ft.
.TONIGHT...Northeast winds 5 to 10 kt becoming east overnight.
Mostly clear. Waves around 1 ft.
.MONDAY...Southeast winds 5 to 10 kt becoming northeast in the
afternoon. Sunny. Waves around 1 ft.
.MONDAY NIGHT...Northeast winds 5 to 10 kt becoming east
overnight. Mostly clear. Waves around 1 ft.

$$

Carlaw