National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 190833
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
333 AM CDT Fri Jun 19 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>742-191530
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
333 AM CDT Fri Jun 19 2026

TODAY
Northwest winds 10 to 15 kt becoming east early in the afternoon then becoming southeast late in the afternoon. Sunny. Waves 1 to 2 ft.

TONIGHT
South winds 10 to 15 kt becoming west overnight. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers overnight. Waves around 1 ft.

SATURDAY
West winds 10 to 15 kt becoming northwest in the afternoon. Sunny. Waves 1 to 2 ft.

SATURDAY NIGHT
North winds around 10 kt becoming northeast overnight. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 ft or less.

LMZ743>745-191530
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
333 AM CDT Fri Jun 19 2026

TODAY
West winds 10 to 15 kt becoming north early in the afternoon then becoming east 5 to 10 kt late in the afternoon. Sunny. Waves 1 to 2 ft.

TONIGHT
South winds 5 to 10 kt becoming west 10 to 15 kt overnight. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers overnight. Waves 1 to 2 ft.

SATURDAY
West winds 10 to 15 kt becoming northwest in the afternoon. Sunny. Waves 1 to 2 ft.

SATURDAY NIGHT
East winds around 10 kt becoming around 5 kt overnight. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 ft or less.

Ogorek