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FZUS53 KLOT 040824
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
324 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>742-041530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
324 AM CDT Fri Jul 4 2025

.TODAY...Southwest winds around 10 kt shifting north 15 to 25 kt
mid morning, then becoming southeast 10 to 15 kt this afternoon.
Chance of showers and thunderstorms, mainly this morning. Waves
around 1 ft building to 2 to 4 ft mid morning, then subsiding to
1 to 2 ft this afternoon.
.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>745-041530-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
324 AM CDT Fri Jul 4 2025

.TODAY...South winds around 10 kt shifting north 15 to 20 kt
mid morning, then becoming southeast around 10 kt this afternoon.
Chance of showers and thunderstorms, mainly this morning. Waves
around 1 ft building to 2 to 4 ft mid morning, then subsiding to
1 to 2 ft 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.

$$