379
FZUS53 KLOT 121559
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
959 AM CST Wed Nov 12 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>742-122215-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
959 AM CST Wed Nov 12 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.REST OF TODAY...West winds to 30 kt. Sunny. Waves 2 to 4 ft.
.TONIGHT...West winds 20 to 25 kt early this evening diminishing
to 10 to 20 kt. Mostly clear. Waves 1 to 3 ft.
.THURSDAY...West winds 10 to 15 kt becoming southwest in the
afternoon. Mostly sunny in the morning, then becoming partly
cloudy. Waves 1 to 2 ft.
.THURSDAY NIGHT...Southwest winds around 10 kt becoming south.
Mostly cloudy in the evening then clearing. Waves around 1 ft.

$$

LMZ743>745-122215-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
959 AM CST Wed Nov 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...West winds to 30 kt. Sunny. Waves 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...West winds 20 to 25 kt early this evening diminishing
to 10 to 20 kt. Mostly clear. Waves 4 to 6 ft occasionally to 8
ft subsiding to 3 to 5 ft late tonight.
.THURSDAY...West winds 10 to 15 kt becoming southwest in the
afternoon. Mostly sunny in the morning, then becoming partly
cloudy. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.THURSDAY NIGHT...South winds around 10 kt. Mostly cloudy in the
evening then clearing. Waves 1 to 2 ft.

$$

Ogorek