Nearshore Marine Forecast
Issued by NWS Chicago, IL

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739
FZUS53 KLOT 170255
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
955 PM CDT Mon Jun 16 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>742-170915-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
955 PM CDT Mon Jun 16 2025

.REST OF TONIGHT...Southeast winds 5 to 10 kt becoming southwest
late. Mostly cloudy. Waves around 1 ft.
.TUESDAY...Southwest winds 10 to 15 kt. Slight chance of showers
in the morning. Chance of showers and thunderstorms in the
afternoon. Waves around 1 ft.
.TUESDAY NIGHT...West winds 5 to 10 kt becoming southwest
overnight. Showers and thunderstorms likely. Waves 1 ft or less.
.WEDNESDAY...South winds 10 to 20 kt. Showers in the morning,
then showers and a chance of thunderstorms in the afternoon.
Waves 1 to 2 ft.

$$

LMZ743>745-170915-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
955 PM CDT Mon Jun 16 2025

.REST OF TONIGHT...Southeast winds 5 to 10 kt becoming southwest
late. Mostly cloudy. Waves around 1 ft.
.TUESDAY...Southwest winds 10 to 15 kt. Slight chance of showers
and thunderstorms in the afternoon. Waves 1 ft or less.
.TUESDAY NIGHT...Southwest winds 5 to 10 kt. Showers and
thunderstorms likely. Waves 1 ft or less.
.WEDNESDAY...South winds 10 to 15 kt increasing to 15 to 20 kt.
Showers likely in the morning, then showers and a chance of
thunderstorms in the afternoon. Waves 1 to 2 ft.

$$

Petr