FZUS53 KLOT 041925

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

225 PM CDT Mon May 4 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>742-050315-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

225 PM CDT Mon May 4 2026



...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...



.LATE THIS AFTERNOON...Southwest winds to 30 kt. Partly cloudy. Waves

2 to 4 ft. 

.TONIGHT...Southwest winds 15 to 25 kt becoming northwest 10 to 

15 kt. Scattered gusty thunderstorms. Waves 1 to 3 ft. 

.TUESDAY...Northwest winds 10 to 15 kt becoming east. Slight 

chance of showers in the morning. Waves 1 to 2 ft. 

.TUESDAY NIGHT...Southeast winds around 10 kt becoming northwest

overnight. Mostly cloudy. Waves 1 to 2 ft. 

.WEDNESDAY...North winds around 10 kt becoming northeast in the

afternoon. Mostly cloudy. Waves 1 to 2 ft.  



$$



LMZ743>745-050315-

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

Burns Harbor to Michigan City IN-

225 PM CDT Mon May 4 2026



...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...



.LATE THIS AFTERNOON...Southwest winds to 30 kt. Partly cloudy. Waves

2 to 4 ft.

.TONIGHT...Southwest winds 15 to 25 kt becoming northwest 10 to 

15 kt. Scattered gusty thunderstorms. Waves 1 to 3 ft. 

.TUESDAY...North winds around 15 kt becoming northeast late.

Slight chance of showers in the morning. Waves 1 to 2 ft. 

.TUESDAY NIGHT...East winds around 10 kt becoming north

overnight. Mostly cloudy. Waves 1 to 2 ft. 

.WEDNESDAY...North winds around 10 kt. Mostly cloudy. Waves 1 to

2 ft.  



$$



Borchardt