623
FZUS53 KLOT 192104
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
304 PM CST Wed Nov 19 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>742-200515-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
304 PM CST Wed Nov 19 2025

.TONIGHT...Southeast winds 5 to 10 kt gradually becoming
southwest. Cloudy. Waves 1 to 2 ft.
.THURSDAY...Southwest winds around 10 kt. Cloudy. Waves 1 to
2 ft.
.THURSDAY NIGHT...Southwest winds around 10 kt becoming west
overnight. Mostly cloudy. Waves around 1 ft.
.FRIDAY...North winds 10 to 15 kt. Slight chance of rain in the
afternoon. Waves 1 to 2 ft.

$$

LMZ743>745-200515-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
304 PM CST Wed Nov 19 2025

.TONIGHT...Southeast winds 5 to 10 kt gradually becoming
southwest. Cloudy. Waves 1 to 2 ft.
.THURSDAY...South winds 10 to 15 kt becoming southwest. Cloudy.
Waves around 1 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt becoming west
overnight. Cloudy. Waves 1 to 2 ft.
.FRIDAY...North winds 10 to 15 kt. Slight chance of rain in the
afternoon. Waves 1 to 3 ft.

$$

Kluber