931
FZUS53 KLOT 110846
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
346 AM CDT Mon Aug 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>742-111530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
346 AM CDT Mon Aug 11 2025

.TODAY...Southwest winds 10 to 20 kt becoming southeast in the
afternoon. Slight chance of showers in the morning, then chance
of showers and thunderstorms in the afternoon. Waves 1 to 2 ft.
.TONIGHT...South winds 5 to 10 kt becoming southwest overnight.
Chance of showers and thunderstorms. Waves around 1 ft.
.TUESDAY...Southwest winds 10 to 15 kt. Showers likely and a
chance of thunderstorms in the morning, then chance of showers
and thunderstorms in the afternoon. Waves around 1 ft.
.TUESDAY NIGHT...Southwest winds around 10 kt becoming west
overnight. Slight chance of showers and thunderstorms in the
evening. Waves around 1 ft.

$$

LMZ743>745-111530-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
346 AM CDT Mon Aug 11 2025

.TODAY...Southwest winds 10 to 20 kt becoming northeast 10 to 15
kt in the afternoon. Chance of showers and slight chance of
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 1 to 2 ft.
.TONIGHT...Southeast winds 10 to 15 kt becoming southwest 5 to
10 kt overnight. Slight chance of showers and thunderstorms in
the evening, then chance of showers and thunderstorms overnight.
Waves around 1 ft.
.TUESDAY...Southwest winds 10 to 15 kt. Showers likely and a
chance of thunderstorms. Waves around 1 ft.
.TUESDAY NIGHT...Southwest winds 5 to 10 kt becoming west
overnight. Slight chance of showers and thunderstorms in the
evening. Waves around 1 ft.

$$

Carlaw