340
FZUS53 KLOT 072101
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
301 PM CST Sun Dec 7 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>742-080445-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
301 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.LATE THIS AFTERNOON...North winds 20 to 25 kt with gusts to 30
kt. Mostly cloudy. Waves 4 to 7 ft occasionally to 9 ft.
.TONIGHT...Northeast winds 15 to 25 kt becoming east and then
diminishing to around 10 kt late. Scattered snow showers in the
evening, then isolated snow showers after midnight. Waves 4 to 7
ft occasionally to 9 ft subsiding to 3 to 5 ft.
.MONDAY...East winds around 10 kt becoming southeast 10 to 15 kt
in the mid morning and then south late. Mostly cloudy. Waves 2 to
4 ft subsiding to 1 to 3 ft.
.MONDAY NIGHT...South winds 15 to 20 kt becoming southwest to 30
kt. Slight chance of snow overnight. Waves 1 to 3 ft building to
3 to 5 ft.
.TUESDAY...Southwest winds 20 to 25 kt diminishing to 10 to 20 kt.
Slight chance of rain and snow in the afternoon. Waves 3 to 5 ft
subsiding to 1 to 3 ft.


$$

LMZ743>745-080445-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
301 PM CST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.LATE THIS AFTERNOON...North winds 20 to 25 kt with gusts to 30 kt.
Slight chance of snow showers. Waves 4 to 7 ft occasionally to 9
ft.
.TONIGHT...Northeast winds 15 to 25 kt becoming east and then
diminishing to 10 to 15 kt late. Isolated to scattered snow
showers in the evening. Waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft late.
.MONDAY...East winds 10 to 15 kt becoming southeast in the mid
morning and then south late. Mostly cloudy. Waves 2 to 4 ft
subsiding to 1 to 2 ft.
.MONDAY NIGHT...South winds 10 to 20 kt becoming southwest to 30
kt. Mostly cloudy. Waves 1 to 3 ft building to 3 to 5 ft.
.TUESDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Slight chance of snow in the morning, then slight chance of rain
in the afternoon. Waves 3 to 5 ft.

$$

RC