Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 032001
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
301 PM CDT Thu Apr 3 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>742-040330-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
301 PM CDT Thu Apr 3 2025

.LATE THIS AFTERNOON...West winds 10 to 15 kt. Mostly cloudy.
Waves 1 to 2 ft.
.TONIGHT...Northwest winds 5 to 10 kt becoming northeast 10 to
15 kt late. Mostly cloudy. Waves 1 to 2 ft.
.FRIDAY...Northeast winds 10 to 15 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 15 to 20 kt. Rain showers and
slight chance of thunderstorms. Waves 2 to 4 ft.
.SATURDAY...North winds 15 to 20 kt. Chance of showers. Waves
3 to 5 ft.

$$

LMZ743>745-040330-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
301 PM CDT Thu Apr 3 2025

.LATE THIS AFTERNOON...West winds 10 to 20 kt. Mostly cloudy.
Waves 1 to 2 ft.
.TONIGHT...Northwest winds 5 to 10 kt becoming northeast 10 to
15 kt late. Mostly cloudy. Waves around 1 ft.
.FRIDAY...Northeast winds 10 to 15 kt. Chance of showers in the
afternoon. Waves 1 to 2 ft.
.FRIDAY NIGHT...Northeast winds 15 to 25 kt. Showers and slight
chance of thunderstorms. Waves 2 to 4 ft.
.SATURDAY...North winds 15 to 25 kt. Chance of showers and slight
chance of thunderstorms in the morning, then chance of showers in
the afternoon. Waves 3 to 5 ft.

$$

DK