474
FZUS53 KLOT 290220
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
920 PM CDT Thu Aug 28 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>742-290930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
920 PM CDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

.REST OF TONIGHT...Northeast winds 20 to 25 kt diminishing to 15
to 20 kt late. Mostly clear. Waves 5 to 8 ft occasionally to 10
ft subsiding to 4 to 6 ft occasionally to 8 ft late.
.FRIDAY...Northeast winds 10 to 15 kt. Partly cloudy. Waves 3 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft in the early
afternoon and then to 1 to 3 ft late.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt. Partly cloudy. Waves
1 to 3 ft.
.SATURDAY...East winds 5 to 10 kt becoming northeast in the
afternoon. Partly cloudy in the morning, then becoming mostly
sunny. Waves around 1 ft.

$$

LMZ743>745-290930-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
920 PM CDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.REST OF TONIGHT...Northeast winds 20 to 25 kt diminishing to 15
to 20 kt late. Mostly clear. Waves 5 to 8 ft occasionally to 10
ft subsiding to 4 to 7 ft occasionally to 9 ft.
.FRIDAY...Northeast winds 10 to 15 kt becoming north. Mostly
sunny in the morning, then becoming partly cloudy. Waves 3 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft in the early
afternoon and then to 1 to 3 ft late.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt becoming east
overnight. Mostly clear. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 5 to 10 kt becoming northeast in the
afternoon. Mostly sunny. Waves around 1 ft.

$$

Kluber