Nearshore Marine Forecast
Issued by NWS Chicago, IL

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094
FZUS53 KLOT 072035
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
335 PM CDT Tue Oct 7 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>742-080330-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
335 PM CDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

.TONIGHT...North winds 15 to 25 kt. Partly cloudy early in the
evening then clearing. Waves 3 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Northeast winds 15 to 25 kt. Partly cloudy. Waves 3
to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft late in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east
overnight. Mostly clear. Waves 2 to 4 ft.
.THURSDAY...Southeast winds 10 to 15 kt. Sunny. Waves 2 to 4 ft
subsiding to 1 to 3 ft.

$$

LMZ743>745-080330-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
335 PM CDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

.TONIGHT...North winds 20 to 25 kt. Mostly cloudy early in the
evening then clearing. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...Northeast winds 15 to 25 kt. Mostly sunny. Waves 4
to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft late in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east
overnight. Clear. Waves 2 to 4 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming east. Sunny.
Waves 1 to 3 ft.

$$

Petr