545
FZUS53 KLOT 190859
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
259 AM CST Wed Nov 19 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>742-191615-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
259 AM CST Wed Nov 19 2025

.TODAY...East winds 10 to 15 kt diminishing to around 5 kt.
Cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.TONIGHT...Southeast winds around 5 kt becoming southwest
overnight. Cloudy. Waves 1 to 2 ft.
.THURSDAY...Southwest winds around 10 kt. Mostly cloudy. Waves
1 to 2 ft.
.THURSDAY NIGHT...Southwest winds around 10 kt becoming northwest
overnight. Slight chance of rain in the evening. Waves 1 to 2 ft.


$$

LMZ743>745-191615-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
259 AM CST Wed Nov 19 2025

.TODAY...East winds 10 to 15 kt diminishing to around 5 kt.
Cloudy. Waves 1 to 3 ft.
.TONIGHT...Southeast winds around 5 kt becoming south overnight.
Cloudy. Waves 1 ft or less.
.THURSDAY...South winds around 10 kt becoming southwest. Mostly
cloudy. Waves around 1 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt becoming northwest
overnight. Slight chance of rain. Waves 1 to 3 ft.

$$

- Izzi