732
FZUS53 KLOT 151951
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
251 PM CDT Wed Oct 15 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>742-160345-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
251 PM CDT Wed Oct 15 2025

.TONIGHT...Northeast winds 10 to 15 kt becoming east around 10 kt
overnight. Mostly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 15 kt. Mostly cloudy in the
morning, then becoming partly cloudy. Waves 1 to 3 ft.
.THURSDAY NIGHT...Southeast winds 10 to 15 kt increasing to 15 to
20 kt and then becoming south overnight. Slight chance of
showers. Waves 1 to 3 ft building to 2 to 4 ft.
.FRIDAY...South winds 15 to 20 kt. Slight chance of showers in
the morning. Waves 2 to 4 ft.

$$

LMZ743>745-160345-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
251 PM CDT Wed Oct 15 2025

.TONIGHT...Northeast winds 10 to 15 kt becoming east around 10 kt
overnight. Mostly cloudy. Waves 1 to 3 ft.
.THURSDAY...Southeast winds around 10 kt becoming east. Partly
cloudy in the morning then clearing. Waves 1 to 2 ft.
.THURSDAY NIGHT...Southeast winds 10 to 15 kt increasing to 10 to
20 kt and then becoming south overnight. Slight chance of showers
overnight. Waves 1 to 3 ft.
.FRIDAY...South winds 15 to 20 kt. Mostly cloudy. Waves 1 to
3 ft.

$$

RC