607
FZUS53 KLOT 041433
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
933 AM CDT Fri Jul 4 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>742-042130-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
933 AM CDT Fri Jul 4 2025

.REST OF TODAY...North winds 10 to 20 kt becoming southeast and
diminishing to 10 to 15 kt this afternoon. Showers likely and a
chance of thunderstorms late in the morning, then slight chance of
showers and thunderstorms in the afternoon. Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 15 kt becoming southwest overnight.
Mostly clear. Waves 1 to 2 ft.
.SATURDAY...South winds 15 to 25 kt. Mostly sunny in the morning,
then becoming partly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...Southwest winds 15 to 20 kt. Slight chance of
showers and thunderstorms in the evening, then chance of showers
and thunderstorms overnight. Waves 1 to 3 ft.

$$

LMZ743>745-042130-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
933 AM CDT Fri Jul 4 2025

.REST OF TODAY...North winds 15 to 20 kt becoming southeast 10 to
15 kt this afternoon. Chance of showers and thunderstorms late in
the morning, then slight chance of showers and thunderstorms in
the afternoon. Waves 1 to 3 ft subsiding to 2 ft or less this
afternoon.
.TONIGHT...South winds around 10 kt. Mostly clear. Waves around
1 ft.
.SATURDAY...South winds 10 to 15 kt becoming southwest 15 to 20
kt. Mostly sunny in the morning, then becoming partly cloudy.
Waves 1 to 2 ft.
.SATURDAY NIGHT...South winds 15 to 20 kt becoming southwest.
Slight chance of showers and thunderstorms overnight. Waves 1 to
2 ft.

$$

KJB