Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 111413
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
913 AM CDT Tue Mar 11 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.

LMZ740-741-112130-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
913 AM CDT Tue Mar 11 2025

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

.REST OF TODAY...North winds to 30 kt with a brief period of gales
to nearly 40 knots this morning with a cold front. Partly cloudy
late in the morning then clearing. Waves 4 to 6 ft occasionally to
8 ft building to 5 to 8 ft occasionally to 10 ft.
.TONIGHT...North winds 15 to 25 kt becoming east 10 to 20 kt
after midnight. Mostly clear. Waves 5 to 8 ft occasionally to 10
ft subsiding to 3 to 6 ft occasionally to 8 ft.
.WEDNESDAY...East winds 10 to 20 kt becoming northeast 5 to 10 kt
in the afternoon. Partly cloudy. Waves 3 to 6 ft occasionally to 8
ft subsiding to 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds around 10 kt. Partly cloudy in
the evening then clearing. Waves 1 to 2 ft.

$$

LMZ742>745-112130-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
913 AM CDT Tue Mar 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...Northwest winds increasing sharply to 30 kt with
a brief period of gales to 35 kt this morning, then becoming
north and diminishing to 20 to 25 kt in the afternoon. Partly
cloudy late in the morning then clearing. Waves 3 to 5 ft building
quickly to 6 to 9 ft occasionally to 12 ft.
.TONIGHT...North winds 15 to 25 kt becoming east and diminishing
to 10 to 15 kt late. Mostly clear. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft late.
.WEDNESDAY...East winds 10 to 15 kt becoming northeast 5 to 10 kt
in the afternoon. Partly cloudy. Waves 2 to 4 ft subsiding to
1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt. Partly cloudy in
the evening then clearing. Waves 1 to 2 ft.

$$

Carlaw