FZUS53 KLOT 161947
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
247 PM 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>742-170330-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
247 PM CDT Fri Oct 16 2026

...GALE WARNING IN EFFECT UNTIL 1 AM CDT SATURDAY...

.TONIGHT...North gales to 40 kt diminishing to 15 to 25 kt late.
Scattered showers, mainly in the evening. Waves 6 to 9 feet 
occasionally to 12 ft building to 10 to 14 ft occasionally to 18 
ft this evening, then subsiding to 8 to 12 ft occasionally to 16 
ft overnight.
.SATURDAY...North winds 10 to 20 kt becoming southwest 10 to
15 kt in the afternoon. Mostly 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. 
.SUNDAY...Southwest winds 15 to 20 kt becoming south. Sunny.
Waves 2 to 4 ft.  

$$

LMZ743>745-170330-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
247 PM CDT Fri Oct 16 2026

...GALE WARNING IN EFFECT UNTIL 1 AM CDT SATURDAY...

.TONIGHT...North gales to 40 kt diminishing to 30 kt overnight. 
Chance of waterspouts in the evening. Numerous showers in the 
evening, then scattered showers after midnight. Waves 12 to 16 ft 
occasionally to 21 ft subsiding to 8 to 11 ft occasionally to 14 
ft overnight. 
.SATURDAY...Northeast winds 10 to 20 kt becoming southwest and
diminishing to around 10 kt in the afternoon. Isolated showers in
the morning. 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. 
.SUNDAY...South winds 10 to 20 kt. Sunny. Waves 1 to 2 ft.  

$$

KJB