143
FZUS53 KLOT 290832
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
332 AM CDT Fri Aug 29 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>742-292130-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
332 AM CDT Fri Aug 29 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

.TODAY...Northeast winds 10 to 15 kt. Mostly sunny in the
morning, then becoming partly cloudy. Waves 3 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft late in the day.
.TONIGHT...East winds 5 to 10 kt. Slight chance of showers after
midnight. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 5 to 10 kt becoming east in the
afternoon. Partly cloudy. Waves around 1 ft.
.SATURDAY NIGHT...East winds 5 to 10 kt. Partly cloudy in the
evening then clearing. Waves around 1 ft.

$$

LMZ743>745-292130-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
332 AM CDT Fri Aug 29 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Northeast winds 10 to 15 kt. 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.
.TONIGHT...Northeast winds around 10 kt becoming southeast late.
Slight chance of showers after midnight. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 5 to 10 kt becoming northeast in the
afternoon. Partly cloudy in the morning then clearing. Waves
around 1 ft.
.SATURDAY NIGHT...Northeast winds 5 to 10 kt becoming east
overnight. Mostly clear. Waves around 1 ft.

$$

KJB