878
FZUS53 KLOT 310819
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
319 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>742-311515-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
319 AM CDT Sun Aug 31 2025

.TODAY...East winds 5 to 10 kt becoming northeast. Most 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>745-311515-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
319 AM CDT Sun Aug 31 2025

.TODAY...East winds 5 to 10 kt becoming northeast late. 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.

$$

KJB