421
FZUS53 KLOT 140207
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
907 PM CDT Wed Aug 13 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>742-140915-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
907 PM CDT Wed Aug 13 2025

.REST OF TONIGHT...Northeast winds around 10 kt becoming north.
Mostly clear. Waves 1 to 3 ft.
.THURSDAY...North winds 5 to 10 kt becoming northeast. Mostly
sunny. Waves 1 to 2 ft.
.THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast
overnight. Mostly clear. Waves around 1 ft.
.FRIDAY...South winds 5 to 10 kt becoming southeast. Mostly
sunny. Waves around 1 ft.

$$

LMZ743>745-140915-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
907 PM CDT Wed Aug 13 2025

.REST OF TONIGHT...Northeast winds around 10 kt. Mostly clear.
Waves 1 to 3 ft.
.THURSDAY...Northeast winds 5 to 10 kt. Sunny. Waves 1 to 2 ft.
.THURSDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast
overnight. Clear. Waves around 1 ft.
.FRIDAY...South winds 5 to 10 kt becoming southeast. Sunny.
Waves 1 ft or less.

$$