FZUS53 KLOT 040200 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 900 PM CDT Sun May 3 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>742-040915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 900 PM CDT Sun May 3 2026 .REST OF TONIGHT...Southwest winds 15 to 20 kt diminishing to around 10 kt. Mostly clear. Waves 1 to 2 ft. .MONDAY...Southwest winds 10 to 15 kt increasing to 15 to 25 kt. Partly cloudy. Waves 1 to 3 ft. .MONDAY NIGHT...Southwest winds 10 to 20 kt becoming northwest 10 to 15 kt overnight. Showers likely and a chance of thunderstorms in the evening, then chance of showers overnight. Waves 1 to 2 ft. .TUESDAY...North winds 10 to 15 kt becoming northeast in the afternoon. Chance of showers. Waves 1 to 2 ft. $$ LMZ743>745-040915- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 900 PM CDT Sun May 3 2026 .REST OF TONIGHT...Southwest winds 15 to 20 kt diminishing to around 10 kt. Mostly clear. Waves 1 to 2 ft. .MONDAY...Southwest winds around 15 kt increasing to 15 to 25 kt. Partly cloudy. Waves 1 to 3 ft. .MONDAY NIGHT...Southwest winds 15 to 20 kt becoming northwest 10 to 15 kt overnight. Showers likely and a chance of thunderstorms in the evening, then chance of showers overnight. Waves 1 to 3 ft. .TUESDAY...North winds 10 to 15 kt becoming northeast in the afternoon. Chance of showers in the morning, then showers likely in the afternoon. Waves 1 to 2 ft. $$ Ratzer