694
FZUS53 KLOT 020335
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
935 PM CST Mon Dec 1 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>742-021045-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
935 PM CST Mon Dec 1 2025

.REST OF TONIGHT...South winds 10 to 20 kt becoming west 10 to 15
kt late. Snow late in the evening, then chance of snow after
midnight. Waves 1 to 3 ft.
.TUESDAY...Northwest winds 10 to 15 kt becoming west in the
early afternoon and then southwest late. Mostly cloudy. Waves 1
to 2 ft.
.TUESDAY NIGHT...Southwest winds 15 to 20 kt increasing to 20 to
25 kt. Cloudy. Waves building to 2 to 4 ft. A small craft advisory
will likely be needed.
.WEDNESDAY...Southwest winds 20 to 25 kt becoming west 15 to 25 kt
in the afternoon. Chance of snow showers in the morning, then snow
showers likely in the afternoon. Waves 2 to 4 ft.

$$

LMZ743>745-021045-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
935 PM CST Mon Dec 1 2025

.REST OF TONIGHT...South winds 10 to 15 kt becoming west late.
Snow. Waves 1 to 2 ft.
.TUESDAY...Northwest winds 10 to 15 kt becoming west in the
afternoon. Slight chance of snow showers in the morning. Waves
1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 15 to 20 kt increasing to 20 to
25 kt. Cloudy. Waves building to 2 to 4 ft. A small craft advisory
may be needed.
.WEDNESDAY...Southwest winds 15 to 25 kt becoming west 15 to 25 kt
in the afternoon. Slight chance of snow showers in the morning,
then snow showers likely in the afternoon. Waves 3 to 5 ft.

$$

Petr