Nearshore Marine Forecast
Issued by NWS Chicago, IL

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946
FZUS53 KLOT 120201 AAA
NSHLOT

Nearshore Marine Forecast...UPDATED
National Weather Service Chicago/Romeoville IL
801 PM CST Tue Nov 11 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>742-121030-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
801 PM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...Southwest winds to 30 kt becoming west 20 to
25 kt late. Occasional gale force gusts to 35 kt this evening.
Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.WEDNESDAY...West winds to 30 kt. Sunny. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...West winds 20 to 25 kt diminishing to 10 to 20
kt. Mostly clear in the evening, then becoming partly cloudy.
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.

$$

LMZ743>745-121030-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
801 PM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TONIGHT...Southwest winds to 30 kt becoming west late.
Occasional gale force gusts to 35 kt this evening. Mostly clear.
Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...West winds to 30 kt. Mostly sunny. Waves 4 to 7 ft
occasionally to 9 ft.
.WEDNESDAY NIGHT...West winds 20 to 25 kt diminishing to 15 to 20
kt late. Mostly clear in the evening, then becoming partly
cloudy. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5
ft.
.THURSDAY...West winds 10 to 15 kt becoming southwest in the
afternoon. Mostly sunny in the morning, then becoming partly
cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft.

$$

- Izzi