Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
937 FZUS53 KLOT 192031 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 331 PM CDT Sun May 19 2024 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>742-200330- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 331 PM CDT Sun May 19 2024 .TONIGHT...Northeast winds 10 to 15 kt becoming southeast 5 to 10 kt. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 to 2 ft. .MONDAY...South winds 10 to 20 kt increasing to 15 to 20 kt in the afternoon. Showers and thunderstorms in the afternoon. Waves 1 to 3 ft. .MONDAY NIGHT...Southwest winds 10 to 15 kt becoming south 5 to 10 kt. Showers likely and a chance of thunderstorms in the evening, then chance of showers and slight chance of thunderstorms overnight. Waves 1 to 3 ft. .TUESDAY...South winds 10 to 15 kt increasing to 30 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. $$ LMZ743>745-200330- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 331 PM CDT Sun May 19 2024 .TONIGHT...Northeast winds 10 to 15 kt becoming southeast 5 to 10 kt. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 to 2 ft. .MONDAY...South winds 10 to 20 kt increasing to 15 to 20 kt. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .MONDAY NIGHT...South winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of showers and thunderstorms in the evening, then chance of showers and slight chance of thunderstorms overnight. Waves 1 to 2 ft. .TUESDAY...South winds 10 to 15 kt increasing to 15 to 25 kt. Chance of showers and thunderstorms. Waves around 1 ft building to 1 to 3 ft. $$ KJB