FZUS53 KLOT 041438

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

938 AM 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>742-042115-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

938 AM CDT Mon May 4 2026



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



.REST OF TODAY...Southwest winds 10 to 15 kt this morning

increasing to 30 kt this afternoon. Mostly sunny. Waves 2 to 4 

ft.

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

15 kt. Scattered showers and thunderstorms. Waves 1 to 3 ft. 

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

afternoon. Slight chance of showers. Waves 1 to 3 ft. 

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

overnight. Slight chance of showers in the evening. Waves 1 to

2 ft.  



$$



LMZ743>745-042115-

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

Burns Harbor to Michigan City IN-

938 AM CDT Mon May 4 2026



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



.REST OF TODAY...Southwest winds 10 to 15 kt this morning

increasing to 30 kt this afternoon. Mostly sunny. Waves 2 to 4 

ft.

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

15 kt. Scattered showers and thunderstorms. Waves 1 to 3 ft. 

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

afternoon. Chance of showers in the afternoon. Waves 1 to 3 ft. 

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

overnight. Slight chance of showers in the evening. Waves 1 to

2 ft.  



$$



Borchardt