236
FZUS53 KLOT 220821
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
321 AM CDT Tue Apr 22 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.

LMZ740-222145-
Winthrop Harbor to Wilmette Harbor IL-
321 AM CDT Tue Apr 22 2025

.EARLY THIS MORNING...West winds around 5 kt. Clear. Waves 1 ft
or less.
.TODAY...Southeast winds 10 to 15 kt. Slight chance of showers
and thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 1 ft or less building to 1
to 2 ft.
.TONIGHT...Southeast winds 5 to 10 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.
.WEDNESDAY...Southeast winds 5 to 10 kt. Chance of showers and
thunderstorms, mainly in the afternoon. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 kt becoming south
overnight. Chance of showers and slight chance of thunderstorms,
mainly in the evening. Waves around 1 ft.


$$

LMZ741>745-222145-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
321 AM CDT Tue Apr 22 2025

.EARLY THIS MORNING...Southwest winds less than 10 kt. Clear.
Waves around 1 ft.
.TODAY...South winds around 5 kt becoming southwest 10 to 15 kt.
Slight chance of showers and thunderstorms in the afternoon. Waves
1 to 2 ft.
.TONIGHT...South winds 10 to 15 kt becoming southwest 5 to 10 kt.
Chance of showers and thunderstorms. Waves 1 to 2 ft.
.WEDNESDAY...Southeast winds 5 to 10 kt becoming east in the
afternoon. Slight chance of showers and thunderstorms. Waves 1 ft
or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 kt becoming south
overnight. Chance of showers and slight chance of thunderstorms,
mainly in the evening. Waves 1 ft or less.

$$

- Izzi