National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 081950
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
250 PM CDT Sat Aug 8 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>742-090315
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
250 PM CDT Sat Aug 8 2026

TONIGHT
East winds 10 to 15 kt becoming south 5 to 10 kt overnight. Mostly clear. Waves 1 to 2 ft.

SUNDAY
South winds 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Chance of showers and thunderstorms. Waves 1 to 3 ft.

SUNDAY NIGHT
South winds 10 to 15 kt becoming southwest overnight. Showers with thunderstorms likely. Waves 1 to 3 ft.

MONDAY
Southwest winds 10 to 15 kt becoming east in the afternoon. Chance of showers and thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft.

LMZ743>745-090315
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
250 PM CDT Sat Aug 8 2026

TONIGHT
Northeast winds around 10 kt becoming south overnight. Mostly clear. Waves 1 to 2 ft.

SUNDAY
South winds 10 to 15 kt increasing to 15 to 20 kt. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft.

SUNDAY NIGHT
South winds 10 to 15 kt becoming southwest. Showers with thunderstorms likely. Waves 1 to 2 ft.

MONDAY
Southwest winds 10 to 15 kt becoming south in the afternoon. Chance of showers and thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft.

Yack