606
FZUS53 KLOT 121457
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
957 AM CDT Sun Oct 12 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>742-122115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
957 AM CDT Sun Oct 12 2025

.REST OF TODAY...Southeast winds 10 to 15 kt becoming east in the
afternoon. Mostly sunny. Waves 2 to 4 ft.
.TONIGHT...Southeast winds 10 to 20 kt becoming south overnight.
Mostly clear in the evening, then becoming partly cloudy. Waves
2 to 4 ft.
.MONDAY...South winds 10 to 15 kt becoming southeast. Mostly
cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.MONDAY NIGHT...Northeast winds around 5 kt becoming north 10 to
15 kt overnight. Mostly cloudy. Waves 1 to 2 ft.

$$

LMZ743>745-122115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
957 AM CDT Sun Oct 12 2025

.REST OF TODAY...Southeast winds 10 to 15 kt becoming east in the
afternoon. Sunny. Waves 1 to 3 ft.
.TONIGHT...Southeast winds 10 to 15 kt. Clear in the evening,
then becoming partly cloudy. Waves 1 to 2 ft.
.MONDAY...South winds 10 to 15 kt becoming southeast in the
afternoon. Partly cloudy. Waves 1 to 2 ft subsiding to 1 ft or
less.
.MONDAY NIGHT...Northeast winds around 5 kt becoming north
overnight. Mostly cloudy. Waves 1 to 2 ft.

$$

Petr