325
FZUS53 KLOT 040839
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
339 AM CDT Sat Oct 4 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>742-041530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
339 AM CDT Sat Oct 4 2025

.TODAY...Southwest winds around 10 kt becoming south 10 to 20 kt.
Mostly sunny. Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 20 kt. Clear. Waves 1 to 3 ft.
.SUNDAY...South winds 10 to 20 kt becoming southwest and
increasing to 15 to 25 kt. Mostly sunny. Waves 1 to 3 ft building
to 2 to 4 ft.
.SUNDAY NIGHT...Southwest winds 15 to 20 kt. Mostly clear. Waves
2 to 4 ft.

$$

LMZ743>745-041530-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
339 AM CDT Sat Oct 4 2025

.TODAY AND TONIGHT...South winds 10 to 15 kt. Mostly sunny. Waves
1 to 2 ft.
.SUNDAY AND SUNDAY NIGHT...South winds 10 to 20 kt. Mostly clear.
Waves 1 to 3 ft.

$$

- Izzi