189
FZUS53 KLOT 180232
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
932 PM CDT Fri Oct 17 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>743-180930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
932 PM CDT Fri Oct 17 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...South winds 15 to 25 kt. Showers likely a
chance of thunderstorms late. Waves 2 to 4 ft.
.SATURDAY...Southwest winds 15 to 20 kt. Showers likely and a
chance of thunderstorms in the morning, then chance of showers
and slight chance of thunderstorms in the afternoon. Waves 1 to 3
ft.
.SATURDAY NIGHT...South winds 10 to 15 kt becoming west and
increasing to 20 to 25 kt overnight. Showers likely and a chance
of thunderstorms in the evening, then showers and slight chance of
thunderstorms overnight. Waves 1 to 2 ft building to 2 to 4 ft.
.SUNDAY...Northwest gales to 35 kt. Showers likely in the
morning, then slight chance of showers in the afternoon. Waves
quickly building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ744-745-180930-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
932 PM CDT Fri Oct 17 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...South winds 15 to 25 kt. Chance of showers and
slight chance of thunderstorms late. Waves 1 to 3 ft.
.SATURDAY...South winds 15 to 20 kt becoming southwest. Showers
likely and a chance of thunderstorms. Waves 1 to 3 ft.
.SATURDAY NIGHT...South winds 10 to 15 kt becoming west and
increasing to 20 to 25 kt overnight. Showers and a chance of
thunderstorms in the evening, then showers overnight. Waves 1 to 2
ft building to 4 to 6 ft occasionally to 8 ft.
.SUNDAY...Northwest gales to 35 kt. Showers in the morning, then
chance of showers in the afternoon. Waves quickly building to 8
to 12 ft occasionally to 16 ft.

$$

Kluber