FZUS53 KLOT 201952

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

252 PM CDT Sun Sep 20 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>742-210315-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

252 PM CDT Sun Sep 20 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...



.LATE THIS AFTERNOON...Northeast winds 20 to 25 kt. Showers or 

drizzle. Waves 5 to 8 ft occasionally to 10 ft. 

.TONIGHT...Northeast winds to 30 kt. Areas of drizzle and slight

chance of showers in the evening, then chance of showers after

midnight. Waves 6 to 9 ft occasionally to 12 ft. 

.MONDAY...Northeast winds 20 to 25 kt. Slight chance of showers

in the morning. Waves 6 to 9 ft occasionally to 12 ft subsiding

to 5 to 8 ft occasionally to 10 ft. 

.MONDAY NIGHT...Northeast winds 15 to 25 kt. Mostly cloudy. Waves

5 to 8 ft occasionally to 10 ft. 

.TUESDAY...Northeast winds 15 to 25 kt. Mostly cloudy. Waves 6 to

9 ft occasionally to 12 ft.  



$$



LMZ743-744-210315-

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

252 PM CDT Sun Sep 20 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...



.LATE THIS AFTERNOON...Northeast winds 20 to 25 kt. Showers. 

Waves 4 to 6 ft occasionally to 8 ft. 

.TONIGHT...Northeast winds to 30 kt diminishing to 20 to 25 kt.

Showers likely and areas of drizzle in the evening, then chance

of showers after midnight. Waves 4 to 7 ft occasionally to 9 ft. 

.MONDAY...Northeast winds 20 to 25 kt. Slight chance of showers

in the morning. Waves 4 to 6 ft occasionally to 8 ft.

.MONDAY NIGHT...Northeast winds 20 to 25 kt diminishing to 15 to

20 kt. Cloudy. Waves 5 to 8 ft occasionally to 10 ft. 

.TUESDAY...Northeast winds 15 to 20 kt. Mostly cloudy in the

morning, then becoming partly cloudy. Waves 4 to 6 ft

occasionally to 8 ft.  



$$



LMZ745-210315-

Burns Harbor to Michigan City IN-

252 PM CDT Sun Sep 20 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...



.LATE THIS AFTERNOON...Northeast winds 20 to 25 kt. Showers and

slight chance of thunderstorms. Waves 3 to 6 ft occasionally to 8

ft. 

.TONIGHT...Northeast winds 20 to 25 kt. Showers likely in the

evening, then slight chance of showers after midnight. Waves 4 to

6 ft occasionally to 8 ft. 

.MONDAY...Northeast winds 10 to 20 kt. Slight chance of showers 

in the morning. Waves 3 to 5 ft. 

.MONDAY NIGHT...Northeast winds 20 to 25 kt diminishing to 15 to

20 kt. Mostly cloudy. Waves 4 to 6 ft occasionally to 8 ft. 

.TUESDAY...Northeast winds 15 to 20 kt. Mostly cloudy in the

morning, then becoming partly cloudy. Waves 3 to 5 ft.  



$$



Carlaw