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FZUS53 KLOT 290823
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
323 AM CDT Mon Sep 29 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>742-291600-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
323 AM CDT Mon Sep 29 2025

.TODAY...Southeast winds under 5 kt becoming east around 10 kt in
the afternoon. Sunny. Waves around 1 ft building to 1 to 3 ft in
the afternoon.
.TONIGHT...Northeast winds 5 to 10 kt. Mostly clear. Waves 1 to 3
ft subsiding to around 1 ft.
.TUESDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Mostly sunny. Waves around 1 ft building to 1 to 3 ft in the
afternoon.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming east
and increasing to 15 to 20 kt in the evening. Partly cloudy in
the evening, then becoming mostly cloudy. Waves 2 to 4 ft building
to 3 to 5 ft.

$$

LMZ743>745-291600-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
323 AM CDT Mon Sep 29 2025

.TODAY...Southeast winds under 5 kt becoming northeast around 10
kt in the afternoon. Sunny. Waves around 1 ft building to 1 to 3
ft in the afternoon.
.TONIGHT...Northeast winds 5 to 10 kt. Mostly clear. Waves 1 to 3
ft subsiding to around 1 ft.
.TUESDAY...Northeast winds 5 to 10 kt becoming north 10 to 15 kt
in the afternoon. Sunny. Waves around 1 ft building to 1 to 3 ft
in the afternoon.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming east and
increasing to 15 to 20 kt in the evening. Mostly clear in the
evening, then becoming mostly cloudy. Waves 1 to 3 ft.

$$

Carlaw