FZUS53 KLOT 190257

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

957 PM CDT Wed Mar 18 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>742-190915-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

957 PM CDT Wed Mar 18 2026



.REST OF TONIGHT...Southwest winds around 5 kt becoming variable

overnight. Slight chance of showers after midnight. Waves 1 to 2 

ft subsiding to 1 ft or less.

.THURSDAY...North winds 5 to 10 kt becoming east in the 

afternoon. Slight chance of showers in the morning. Waves 1 ft or 

less. 

.THURSDAY NIGHT...East winds 10 to 15 kt becoming south

overnight. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY...Southwest winds 10 to 15 kt becoming west in the

afternoon. Mostly cloudy. Waves 1 to 2 ft.  



$$



LMZ743>745-190915-

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

Burns Harbor to Michigan City IN-

957 PM CDT Wed Mar 18 2026



.REST OF TONIGHT...Southwest winds around 5 kt becoming variable

overnight. Slight chance of showers after midnight. Waves 1 to 2

ft subsiding to 1 ft or less.

.THURSDAY...Southeast winds 5 to 10 kt becoming northeast in the 

afternoon. Slight chance of showers in the morning. Waves 1 ft or 

less. 

.THURSDAY NIGHT...East winds 10 to 15 kt becoming south

overnight. Mostly cloudy. Waves 1 to 2 ft. 

.FRIDAY...Southwest winds 10 to 15 kt becoming west in the

afternoon. Mostly cloudy. Waves 1 to 2 ft.  



$$



Yack