Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
958 FZUS53 KLOT 142015 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 315 PM CDT Sun Jun 14 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>742-150315- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 315 PM CDT Sun Jun 14 2026 .LATE THIS AFTERNOON...Northwest winds 15 to 25 kt. Mostly cloudy. Waves 2 to 4 ft. .TONIGHT...North winds 10 to 20 kt becoming west and diminishing to around 10 kt late. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 2 ft. .MONDAY...West winds 10 to 15 kt. Mostly sunny in the morning, then becoming partly cloudy. Waves 1 to 2 ft. .MONDAY NIGHT...Southwest winds 10 to 15 kt. Mostly cloudy in the evening, then becoming partly cloudy. Waves 1 to 2 ft. .TUESDAY...Southwest winds 15 to 25 kt. Chance of showers and slight chance of thunderstorms in the morning, then showers and a chance of thunderstorms in the afternoon. Waves 1 to 3 ft. $$ LMZ743>745-150315- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 315 PM CDT Sun Jun 14 2026 .LATE THIS AFTERNOON...North winds 15 to 25 kt. Mostly cloudy. Waves 3 to 5 ft. .TONIGHT...North winds 15 to 20 kt becoming southwest and diminishing to around 10 kt. Mostly clear. Waves 3 to 5 ft subsiding to 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft. .MONDAY NIGHT...Southwest winds 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft. .TUESDAY...Southwest winds 15 to 20 kt increasing to 20 to 25 kt. Chance of showers in the morning, then showers and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft building to 2 to 4 ft. $$ KJB