####018002219####
FZUS53 KLOT 180835

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

335 AM CDT Fri Jul 18 2025



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>742-181515-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

335 AM CDT Fri Jul 18 2025



.TODAY...Northeast winds 10 to 15 kt becoming east around 10 kt by

late morning. Mostly cloudy in the morning, then becoming partly 

cloudy. Waves 1 to 3 ft. 

.TONIGHT...East winds around 10 kt becoming south overnight.

Chance of showers and slight chance of thunderstorms late. Waves 

1 to 2 ft. 

.SATURDAY...South winds 10 to 15 kt becoming southwest. Chance of

showers and thunderstorms in the morning, then showers likely and

a chance of thunderstorms in the afternoon. Waves 1 to 2 ft. 

.SATURDAY NIGHT...Northwest winds 10 to 15 kt becoming north

overnight. Chance of showers and thunderstorms in the evening,

then slight chance of showers and thunderstorms overnight. Waves

around 1 ft building to 1 to 3 ft.  



$$



LMZ743>745-181515-

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

Burns Harbor to Michigan City IN-

335 AM CDT Fri Jul 18 2025



.TODAY...East winds 10 to 15 kt becoming northeast in the

afternoon. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.

.TONIGHT...East winds 5 to 10 kt becoming south overnight. Slight

chance of showers and thunderstorms late. Waves around 1 ft.

.SATURDAY...South winds 10 to 15 kt becoming southwest in the

afternoon. Chance of showers and thunderstorms in the morning,

then showers and thunderstorms likely in the afternoon. Waves

around 1 ft. 

.SATURDAY NIGHT...Northwest winds 10 to 15 kt becoming north

overnight. Chance of showers and thunderstorms in the evening,

then slight chance of showers and thunderstorms overnight. Waves

1 to 2 ft.  



$$



Kluber