FZUS53 KLOT 200229 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 929 PM CDT Thu Mar 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>742-200915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 929 PM CDT Thu Mar 19 2026 .REST OF TONIGHT...East winds 5 to 10 kt becoming southwest late. Partly cloudy late in the evening, then becoming mostly cloudy. Waves 1 to 2 ft. .FRIDAY...West winds 10 to 15 kt becoming northeast in the afternoon. Mostly cloudy. Waves 1 to 2 ft. .FRIDAY NIGHT...North winds 10 to 15 kt becoming northeast around 5 kt overnight. Mostly cloudy. Waves 1 to 2 ft. .SATURDAY...Southeast winds around 10 kt becoming south in the afternoon. Partly cloudy. Waves 1 to 2 ft. $$ LMZ743>745-200915- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 929 PM CDT Thu Mar 19 2026 .REST OF TONIGHT...Southeast winds 10 to 15 kt becoming southwest 15 to 20 kt late. Partly cloudy late in the evening, then becoming mostly cloudy. Waves 1 to 2 ft. .FRIDAY...Southwest winds 15 to 20 kt becoming north in the afternoon. Mostly cloudy. Waves 1 to 3 ft. .FRIDAY NIGHT...North winds 10 to 15 kt becoming northeast. Mostly cloudy. Waves 1 to 2 ft. .SATURDAY...Southeast winds around 10 kt becoming south in the afternoon. Partly cloudy in the morning then clearing. Waves 1 to 2 ft. $$ Yack