Nearshore Marine Forecast
Issued by NWS Chicago, IL

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815
FZUS53 KLOT 042037
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
237 PM CST Sat Jan 4 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>742-050430-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
237 PM CST Sat Jan 4 2025

.TONIGHT...Northwest winds 15 to 20 kt diminishing to 10 to
15 kt. Increasing cloudiness. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming north in the
afternoon. Mostly cloudy. Waves 1 to 3 ft building to 2 to 4 ft.
.SUNDAY NIGHT...Northeast winds 20 to 25 kt. Slight chance of
snow in the evening, then chance of snow overnight. Waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. A small craft advisory will likely be needed.
.MONDAY...North winds 20 to 25 kt. Chance of snow. Waves 6 to
9 ft occasionally to 12 ft. A small craft advisory will likely be
needed.

$$

LMZ744-745-050430-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
237 PM CST Sat Jan 4 2025

.TONIGHT...West winds 10 to 15 kt becoming northwest. Increasing
cloudiness. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming north in the
afternoon. Mostly cloudy. Waves 2 to 4 ft.
.SUNDAY NIGHT...Northeast winds 15 to 25 kt. Slight chance of
snow in the evening, then chance of snow overnight. Waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft.
.MONDAY...Northeast winds 20 to 25 kt becoming north. Chance of
snow. Waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft.

$$

LMZ743-050430-
Calumet Harbor IL to Gary IN-
237 PM CST Sat Jan 4 2025

.TONIGHT...West winds 10 to 15 kt becoming northwest. Increasing
cloudiness. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 5 to 10 kt becoming north and
increasing to 10 to 20 kt in the afternoon. Mostly cloudy. Waves
1 to 3 ft.
.SUNDAY NIGHT...Northeast winds 15 to 25 kt. Slight chance of
snow in the evening, then chance of snow overnight. Waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft. A small craft
advisory will likely be needed.
.MONDAY...Northeast winds 20 to 25 kt becoming north. Chance of
snow. Waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. A small craft advisory will likely be
needed.

$$

DK