590
FZUS53 KLOT 241358
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
858 AM CDT Sat May 24 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>742-242115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
858 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast winds 5 to 10 kt increasing to 10 to
15 kt. Mostly sunny. Waves 1 to 2 ft.
.TONIGHT...Northeast winds 10 to 15 kt diminishing to around
5 kt. Slight chance of showers overnight. Waves 1 to 2 ft.
.SUNDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Mostly cloudy in the morning, then becoming partly cloudy. Waves
1 to 2 ft.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt becoming north 5 to
10 kt. Mostly clear. Waves 1 to 2 ft.

$$

LMZ743>745-242115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
858 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast winds 5 to 10 kt increasing to 15 to
20 kt. Mostly sunny. Waves around 1 ft building to 1 to 3 ft this
afternoon.
.TONIGHT...Northeast winds 10 to 15 kt diminishing to 5 to 10 kt.
Slight chance of showers overnight. Waves 1 to 3 ft subsiding to
around 1 ft.
.SUNDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Mostly cloudy in the morning, then becoming partly cloudy. Waves
1 to 2 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt becoming northeast 5 to
10 kt. Mostly clear in the evening, then becoming partly cloudy.
Waves 1 to 2 ft.

$$
KJB