734
FZUS53 KLOT 251546
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
946 AM CST Tue Nov 25 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>742-252230-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
946 AM CST Tue Nov 25 2025

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.REST OF TODAY...Southwest winds 5 to 10 kt. Areas of fog late in
the morning. Occasional drizzle late in the morning. Waves around
1 ft.
.TONIGHT...Southwest winds 15 to 25 kt increasing to 35 kt gales
overnight. Rain showers likely in the evening, then chance of
showers after midnight. Waves around 1 to 3 ft building to 3 to 5
ft.
.WEDNESDAY...West gales to 45 kt. A few storm force gusts to 50
kt possible. Snow showers likely. Waves 4 to 7 ft occasionally to
9 ft.
.WEDNESDAY NIGHT...West gales to 40 kt. Mostly cloudy. Waves 4 to
7 ft occasionally to 9 ft.

$$

LMZ743>745-252230-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
946 AM CST Tue Nov 25 2025

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.REST OF TODAY...Southwest winds 5 to 10 kt. Areas of fog late in
the morning. Occasional drizzle late in the morning. Waves around
1 ft.
.TONIGHT...Southwest winds 10 to 15 kt increasing to 35 kt gales
overnight. Rain showers likely in the evening, then chance of
showers after midnight. Waves around 1 ft building to 5 to 8 ft
occasionally to 10 ft overnight.
.WEDNESDAY...West gales to 45 kt. A few storm force gusts to 50
kt possible. Chance of rain and snow showers in the morning, then
snow showers likely in the afternoon. Waves 7 to 10 ft
occasionally to 13 ft building to 8 to 11 ft occasionally to 14
ft.
.WEDNESDAY NIGHT...West gales to 40 kt. Chance of snow showers in
the evening, then slight chance of snow showers overnight. Waves
8 to 11 ft occasionally to 14 ft.

$$
Doom