503
FZUS53 KLOT 031652
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
1152 AM CDT Thu Apr 3 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>742-032115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1152 AM CDT Thu Apr 3 2025

.REST OF TODAY...West winds 15 to 25 kt diminishing to 10 to 15
kt in the afternoon. Mostly cloudy. Waves 1 to 3 ft subsiding to
around 1 ft.
.TONIGHT...North winds 5 to 10 kt becoming northeast 10 to 15 kt
overnight. Mostly cloudy. Waves 1 ft or less building to 1 to
2 ft.
.FRIDAY...Northeast winds 10 to 15 kt increasing to 15 to 20 kt.
Chance of showers in the afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 15 to 20 kt. Showers. Waves 2 to
4 ft.

$$

LMZ743>745-032115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1152 AM CDT Thu Apr 3 2025

.REST OF TODAY...West winds 15 to 25 kt diminishing to 10 to 15
kt in the afternoon. Partly cloudy late in the morning, then
becoming mostly cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.TONIGHT...North winds 5 to 10 kt becoming northeast 10 to 15 kt
overnight. Mostly cloudy. Waves 1 to 2 ft.
.FRIDAY...Northeast winds 15 to 20 kt. Showers likely in the
afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 15 to 20 kt. Showers. Waves 2 to
4 ft.

$$
DK