Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 112049
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
249 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>742-120430-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
249 PM CST Tue Nov 11 2025

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

.TONIGHT...Southwest winds to 30 kt becoming west 20 to 25 kt
late. A few gale force gusts to 35 kt through sunset. 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>745-120430-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
249 PM CST Tue Nov 11 2025

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

.TONIGHT...Southwest winds to 30 kt becoming west late. A few gale
force gusts to 35 kt through sunset. 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.

$$

Yack