FZUS53 KLOT 050206 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 906 PM CDT Mon May 4 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>742-050915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 906 PM CDT Mon May 4 2026 .REST OF TONIGHT...Southwest winds 15 to 25 kt becoming northwest 10 to 15 kt overnight. Isolated showers. Waves 1 to 3 ft. .TUESDAY...Northwest winds 10 to 15 kt becoming east in the afternoon. Slight chance of showers in the morning. Waves 1 to 2 ft. .TUESDAY NIGHT...Southeast winds around 10 kt becoming northwest overnight. Mostly cloudy. Waves 1 to 2 ft. .WEDNESDAY...North winds around 10 kt becoming northeast in the afternoon. Mostly cloudy. Waves 1 to 2 ft. $$ LMZ743>745-050915- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 906 PM CDT Mon May 4 2026 .REST OF TONIGHT...Southwest winds 15 to 25 kt becoming northwest 10 to 15 kt overnight. Scattered showers and thunderstorms late in the evening, then isolated showers after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft. .TUESDAY...North winds 10 to 15 kt becoming northeast in the afternoon. Slight chance of showers. Waves 1 to 3 ft. .TUESDAY NIGHT...East winds around 10 kt becoming north overnight. Mostly cloudy. Waves 1 to 2 ft. .WEDNESDAY...North winds around 10 kt. Mostly cloudy. Waves 1 to 2 ft. $$ KJB