586
FZUS53 KLOT 220301
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
1001 PM CDT Tue May 21 2024

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>742-220930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1001 PM CDT Tue May 21 2024

...GALE WARNING IN EFFECT UNTIL 4 AM CDT WEDNESDAY...

.REST OF TONIGHT...South gales to 35 kt becoming southwest winds
to 30 kt late. Chance of showers and thunderstorms. Waves 4 to 6
ft occasionally to 8 ft subsiding to 2 to 4 ft.
.WEDNESDAY...Southwest winds 15 to 25 kt becoming west 15 to
20 kt. Partly cloudy in the morning then clearing. Waves 1 to
3 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to
10 kt. Mostly clear. Waves around 1 ft.
.THURSDAY...Southwest winds 5 to 10 kt becoming southeast 10 to
15 kt in the afternoon. Sunny. Waves around 1 ft.

$$

LMZ743>745-220930-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1001 PM CDT Tue May 21 2024

...GALE WARNING IN EFFECT UNTIL 4 AM CDT WEDNESDAY...

.REST OF TONIGHT...Southwest gales to 35 kt becoming southwest
winds to 30 kt. Chance of showers and thunderstorms. Waves 2 to 4
ft.
.WEDNESDAY...Southwest winds 10 to 20 kt becoming west. Partly
cloudy in the morning then clearing. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to
10 kt. Mostly clear. Waves around 1 ft.
.THURSDAY...South winds 5 to 10 kt becoming southeast in the
afternoon. Sunny. Waves 1 ft or less.

$$

KMD