Nearshore Marine Forecast
Issued by NWS Chicago, IL

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720
FZUS53 KLOT 091950
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
250 PM CDT Thu Oct 9 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>743-100315-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
250 PM CDT Thu Oct 9 2025

.TONIGHT...Southeast winds 10 to 15 kt becoming south 15 to 20
kt. Mostly clear. Waves 1 to 3 ft building to 2 to 4 ft.
.FRIDAY...Southwest winds 15 to 25 kt. Isolated showers or
sprinkles. Waves 2 to 4 ft.
.FRIDAY NIGHT...West winds 15 to 20 kt becoming northwest 10 to
15 kt overnight. Slight chance of showers in the evening. Waves 1
to 3 ft building to 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 15 kt becoming north in the
afternoon. Mostly sunny in the morning, then becoming partly
cloudy. Waves 1 to 3 ft building to 2 to 4 ft.

$$

LMZ744-745-100315-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
250 PM CDT Thu Oct 9 2025

.TONIGHT...East winds 5 to 10 kt becoming south 10 to 15 kt late.
Clear. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt becoming southwest in the
afternoon. Isolated showers or sprinkles in the afternoon. Waves 1
to 3 ft.
.FRIDAY NIGHT...West winds 15 to 20 kt becoming northwest
overnight. Chance of showers in the evening. Waves 2 to 4 ft
building to 3 to 5 ft.
.SATURDAY...North winds 10 to 20 kt. Slight chance of showers in
the morning. Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

Kluber