FZUS53 KLOT 161351
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
851 AM CDT Fri Oct 16 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>742-162115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
851 AM CDT Fri Oct 16 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH
LATE TONIGHT...

.REST OF TODAY...Northwest winds to 30 kt becoming north and
increasing to 40 kt gales. Chance of showers late this morning, 
then scattered showers in the afternoon. Slight chance of 
waterspouts in the afternoon. Waves 3 to 5 ft building to 8 to 12 
ft occasionally to 16 ft. 
.TONIGHT...North gales to 40 kt diminishing to 30 kt. Slight
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 10 to
15 kt in the afternoon. Sunny. Waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft. 
.SATURDAY NIGHT...Southwest winds 10 to 15 kt. Clear. Waves 1 to
3 ft.  

$$

LMZ743>745-162115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
851 AM CDT Fri Oct 16 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH
LATE TONIGHT...

.REST OF TODAY...Northwest winds to 30 kt becoming north and
increasing to 40 kt gales. Showers and slight chance of 
thunderstorms, mainly in the afternoon. Chance of waterspouts in 
the afternoon. Waves 6 to 9 ft occasionally to 12 ft building to 
10 to 14 ft occasionally to 18 ft. 
.TONIGHT...North gales to 40 kt diminishing to 30 kt. Chance of 
waterspouts in the evening. Scattered showers and slight chance of
thunderstorms in the evening, then scattered showers overnight. 
Waves 12 to 16 ft occasionally to 21 ft subsiding to 10 to 14 ft 
occasionally to 18 ft. 
.SATURDAY...North winds 10 to 20 kt becoming southwest and
diminishing to around 10 kt in the afternoon. Scattered showers
in the morning. Waves 6 to 9 ft occasionally to 12 ft subsiding
to 3 to 5 ft. 
.SATURDAY NIGHT...Southwest winds 10 to 15 kt. Clear. Waves 1 to
3 ft.  

$$

KJB