985
FZUS53 KLOT 151538
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
938 AM CST Mon Dec 15 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>743-152215-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
938 AM CST Mon Dec 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

.REST OF TODAY...Southwest winds to 30 kt this morning diminishing
to 15 to 25 kt this afternoon. Mostly cloudy. Waves 3 to 5 ft
subsiding to 1 to 3 ft.
.TONIGHT...Southwest winds 10 to 15 kt in the evening diminishing
to around 10 kt overnight. Partly cloudy. Waves 1 to 2 ft.
.TUESDAY...Southwest winds 10 to 20 kt increasing to 20 to 25 kt.
Mostly cloudy in the morning, then becoming partly cloudy. Waves
1 to 3 ft building to 2 to 4 ft.
.TUESDAY NIGHT...Southwest winds 20 to 25 kt becoming west 15 to
20 kt overnight. Mostly cloudy. Waves 3 to 5 ft subsiding to 2 to
4 ft.

$$

LMZ744-745-152215-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
938 AM CST Mon Dec 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CST THIS AFTERNOON...

.REST OF TODAY...Southwest winds to 30 kt this morning diminishing
to 15 to 25 kt this afternoon. Mostly cloudy. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.TONIGHT...Southwest winds 10 to 20 kt early in the evening
diminishing to around 10 kt. Partly cloudy. Waves 2 to 4 ft
subsiding to 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt increasing to 20 to 25 kt.
Partly cloudy. Waves 1 to 3 ft building to 2 to 4 ft.
.TUESDAY NIGHT...Southwest winds 20 to 25 kt diminishing to 15 to
20 kt overnight. Mostly cloudy. Waves 2 to 4 ft.

$$

Ogorek