499
FZUS53 KLOT 190353
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
953 PM CST Tue Nov 18 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>742-191015-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
953 PM CST Tue Nov 18 2025

.REST OF TONIGHT...Northeast winds 10 to 15 kt. Cloudy. Waves
3 to 5 ft subsiding to 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming east 5 to 10 kt
in the afternoon. Mostly cloudy. Waves 2 to 4 ft subsiding to 1
to 3 ft.
.WEDNESDAY NIGHT...Southeast winds around 5 kt becoming southwest
overnight. Cloudy. Waves 1 to 2 ft.
.THURSDAY...Southwest winds 5 to 10 kt becoming south 10 to 15
kt. Slight chance of rain in the afternoon. Waves 1 to 2 ft.

$$

LMZ743>745-191015-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
953 PM CST Tue Nov 18 2025

.REST OF TONIGHT...East winds 5 to 10 kt becoming northeast 10 to
15 kt. Cloudy. Waves 1 to 3 ft.
.WEDNESDAY...East winds 5 to 10 kt. Cloudy. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Southeast winds around 5 kt becoming south
overnight. Cloudy. Waves 1 ft or less.
.THURSDAY...South winds 5 to 10 kt increasing to 10 to 15 kt.
Slight chance of rain in the afternoon. Waves around 1 ft.

$$

RC