FZUS53 KLOT 160248
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
948 PM CDT Thu Oct 15 2026

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>742-160930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
948 PM CDT Thu Oct 15 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE
FRIDAY NIGHT...

.REST OF TONIGHT...West winds 15 to 25 kt increasing to 30 kt. A 
few gale force gusts to 35 kt possible. Chance of showers late in 
the evening. Waves 1 to 3 ft building to 3 to 5 ft. 
.FRIDAY...Northwest winds to 30 kt becoming north and increasing
to 40 kt gales in the afternoon. Slight chance of waterspouts in 
the afternoon. Showers likely in the afternoon. Waves 4 to 6 ft
occasionally to 8 ft building to 8 to 12 ft occasionally to 16 
ft.
.FRIDAY NIGHT...North gales to 40 kt diminishing to 30 kt. Slight
chance of waterspouts in the evening. Chance of showers in the 
evening. Waves 10 to 14 ft occasionally to 18 ft subsiding to 8 
to 12 ft occasionally to 16 ft. 
.SATURDAY...Northwest winds 10 to 20 kt becoming southwest and
diminishing to around 10 kt in the afternoon. Partly cloudy in
the morning, then becoming sunny. Waves 5 to 8 ft occasionally to
10 ft subsiding to 2 to 4 ft.  

$$

LMZ743>745-160930-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
948 PM CDT Thu Oct 15 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE
FRIDAY NIGHT...

.REST OF TONIGHT...Southwest winds 15 to 25 kt becoming west and 
increasing to 30 kt. A few gale force gusts to 35 kt possible. 
Chance of showers late in the evening, then slight chance of 
showers after midnight. Waves 2 to 4 ft building to 5 to 8 ft 
occasionally to 10 ft. 
.FRIDAY...Northwest winds to 30 kt becoming north and increasing
to 40 kt gales in the afternoon. Slight chance of waterspouts in
the afternoon. Showers in the afternoon. Waves 6 to 9 ft 
occasionally to 12 ft building to 12 to 16 ft occasionally to 21 
ft. 
.FRIDAY NIGHT...North gales to 40 kt diminishing to 30 kt. Slight
chance of waterspouts in the evening. Showers in the evening, 
then chance of showers overnight. Waves 12 to 16 ft occasionally 
to 21 ft subsiding to 10 to 14 ft occasionally to 18 ft. 
.SATURDAY...Northeast winds 10 to 20 kt becoming southwest and
diminishing to around 10 kt in the afternoon. Partly cloudy in
the morning then clearing. Waves 6 to 9 ft occasionally to 12 ft
subsiding to 3 to 5 ft.  

$$
Doom