188
FZUS53 KLOT 212129
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
329 PM CST Fri Nov 21 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>742-220415-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
329 PM CST Fri Nov 21 2025

.TONIGHT...North winds 10 to 15 kt. Cloudy in the evening then
clearing. Waves 1 to 3 ft.
.SATURDAY...Northwest winds under 10 kts in the morning
increasing to 10 to 15 kt and becoming southwest in the afternoon.
Partly cloudy in the morning, then becoming mostly cloudy. Waves
1 to 2 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt becoming west
overnight. Mostly clear. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming west and
diminishing to under 10 kts during the afternoon. Mostly sunny.
Waves 1 to 2 ft.


$$

LMZ743>745-220415-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
329 PM CST Fri Nov 21 2025

.TONIGHT...North winds 10 to 15 kt becoming northeast. Chance of
rain in the evening. Waves 1 to 3 ft.
.SATURDAY...East winds under 10 kts in the morning increasing to
10 to 15 kt and becoming southwest in the afternoon. Mostly sunny
in the morning, then becoming partly cloudy. Waves 1 to 3 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt becoming west
overnight. Partly cloudy in the evening, then becoming mostly
clear. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 20 kt diminishing to under 10 kts
during the afternoon. Mostly sunny. Waves 2 to 4 ft.

$$

Ogorek