Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 121501
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
1001 AM CDT Wed Mar 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.

LMZ740-741-122115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
1001 AM CDT Wed Mar 12 2025

.REST OF TODAY...East winds 15 to 20 kt becoming northeast and
diminishing to 10 to 15 kt this afternoon. Sunny. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.TONIGHT...North winds 5 to 10 kt becoming northeast. Clear.
Waves 1 to 3 ft subsiding to around 1 ft.
.THURSDAY...East winds 5 to 10 kt becoming northeast 10 to 15 kt.
Mostly sunny. Waves 1 to 3 ft.
.THURSDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt overnight. Mostly clear in the evening, then becoming
partly cloudy. Waves 1 to 3 ft building to 2 to 4 ft.

$$

LMZ742>745-122115-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1001 AM CDT Wed Mar 12 2025

.REST OF TODAY...East winds 10 to 15 kt becoming north late.
Sunny. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.TONIGHT...North winds 5 to 10 kt becoming northeast overnight.
Mostly clear. Waves 1 to 2 ft.
.THURSDAY...East winds 5 to 10 kt becoming northeast 10 to 15 kt.
Sunny. Waves 1 to 2 ft.
.THURSDAY NIGHT...East winds 10 to 15 kt becoming southeast
10 to 20 kt overnight. Mostly clear in the evening, then becoming
partly cloudy. Waves 1 to 3 ft.

$$

Yack