Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 030846
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
346 AM CDT Sun Aug 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>742-031545-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
346 AM CDT Sun Aug 3 2025

.TODAY...Northeast winds 5 to 10 kt. Hazy and patchy smoke. Waves
1 to 2 ft.
.TONIGHT...Northeast winds 5 to 10 kt becoming east overnight.
Hazy and patchy smoke. Waves 1 to 2 ft.
.MONDAY...East winds 5 to 10 kt. Mostly sunny in the morning,
then becoming partly cloudy. Waves 1 to 2 ft.
.MONDAY NIGHT...East winds 5 to 10 kt. Partly cloudy. Waves 1 to
2 ft.

$$

LMZ743>745-031545-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
346 AM CDT Sun Aug 3 2025

.TODAY...East winds 5 to 10 kt becoming northeast in the afternoon.
Hazy and patchy smoke. Waves 1 to 2 ft.
.TONIGHT...Northeast winds 5 to 10 kt becoming east overnight.
Hazy and patchy smoke. Waves 1 to 2 ft.
.MONDAY...East winds 5 to 10 kt. Mostly sunny in the morning,
then becoming partly cloudy. Waves 1 to 2 ft.
.MONDAY NIGHT...East winds 5 to 10 kt. Partly cloudy. Waves 1 to
2 ft.

$$

DK