FZUS53 KLOT 150207
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
907 PM CDT Tue Apr 14 2026

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>742-150915-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
907 PM CDT Tue Apr 14 2026

...TORNADO WATCH 109 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

.REST OF TONIGHT...Southwest winds 15 to 25 kt. Numerous showers
and thunderstorms. Some thunderstorms may be severe with damaging
winds, large hail, and tornadoes late in the evening. Waves 1 to
3 ft.
.WEDNESDAY...Southwest winds around 15 kt becoming south. Showers
and a chance of thunderstorms. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Showers and a chance of thunderstorms in the evening, then chance
of showers and slight chance of thunderstorms overnight. Waves
1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming west in the
afternoon. Chance of showers and slight chance of thunderstorms
in the morning, then chance of showers and thunderstorms in the
afternoon. Waves 1 to 2 ft.

$$

LMZ743-744-150915-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
907 PM CDT Tue Apr 14 2026

...TORNADO WATCH 109 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

.REST OF TONIGHT...Southwest winds 15 to 25 kt. Scattered
showers and thunderstorms late in the evening, then chance of
showers and thunderstorms after midnight. Some thunderstorms may
be severe with damaging winds, large hail, and tornadoes late in
the evening. Waves 1 to 3 ft.
.WEDNESDAY...South winds 15 to 20 kt becoming southwest. Showers
and a chance of thunderstorms. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Showers and a chance of thunderstorms. Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming west in the
afternoon. Showers likely and slight chance of thunderstorms in
the morning, then showers likely and a chance of thunderstorms in
the afternoon. Waves 1 to 2 ft.

$$

LMZ745-150915-
Burns Harbor to Michigan City IN-
907 PM CDT Tue Apr 14 2026

...TORNADO WATCH 109 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

.REST OF TONIGHT...Southwest winds 15 to 25 kt. Scattered
showers and thunderstorms late in the evening, then chance of
showers and thunderstorms after midnight. Some thunderstorms may
be severe with damaging winds, large hail, and tornadoes late in
the evening. Waves 1 to 3 ft.
.WEDNESDAY...South winds 15 to 20 kt becoming southwest. Showers
and a chance of thunderstorms. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Showers and a chance of thunderstorms. Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming west in the
afternoon. Showers likely and slight chance of thunderstorms in
the morning, then showers likely and a chance of thunderstorms in
the afternoon. Waves 1 to 2 ft.

$$