679
FZUS53 KLOT 201624
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
1024 AM CST Thu Nov 20 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>742-202215-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1024 AM CST Thu Nov 20 2025

.REST OF TODAY...Southwest winds around 10 kt. Patchy fog late in
the morning. Chance of drizzle late in the afternoon. Waves 1 to
2 ft.
.TONIGHT...Southwest winds 10 to 15 kt becoming northwest
overnight. Chance of drizzle in the evening. Waves around 1 ft.
.FRIDAY...Northwest winds 10 to 15 kt becoming north. Mostly
cloudy. Waves 1 to 2 ft.
.FRIDAY NIGHT...North winds 10 to 15 kt becoming northeast.
Slight chance of rain in the evening. Waves 1 to 3 ft building to
2 to 4 ft.

$$

LMZ743>745-202215-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1024 AM CST Thu Nov 20 2025

.REST OF TODAY...South winds around 10 kt becoming southwest.
Patchy fog late in the morning. Chance of drizzle late in the
afternoon. Waves around 1 ft.
.TONIGHT...Southwest winds around 10 kt becoming west overnight.
Chance of drizzle in the evening. Waves 1 to 2 ft.
.FRIDAY...North winds 10 to 15 kt. Cloudy. Waves 1 to 3 ft.
.FRIDAY NIGHT...North winds 10 to 15 kt becoming northeast.
Slight chance of rain in the evening. Waves 2 to 4 ft.

$$

Ogorek