Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
409 FZUS53 KLOT 142046 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 346 PM CDT Sun Jul 14 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>742-150400- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 346 PM CDT Sun Jul 14 2024 .TONIGHT...South winds 10 to 20 kt becoming west and diminishing to 5 to 10 kt late. Numerous showers and thunderstorms in the evening, then scattered showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall and strong and erratic winds. Waves 1 to 2 ft subsiding to 1 ft or less. .MONDAY...Southwest winds 5 to 10 kt becoming south and increasing to 10 to 20 kt in the afternoon. Isolated showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Waves 1 ft or less building to 1 to 2 ft. .MONDAY NIGHT...Southwest winds 10 to 20 kt. Showers and thunderstorms in the evening, then chance of showers and thunderstorms overnight. Some thunderstorms may produce heavy rainfall. Waves 1 to 2 ft. .TUESDAY...Northwest winds 10 to 15 kt becoming north in the afternoon. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. $$ LMZ743>745-150400- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 346 PM CDT Sun Jul 14 2024 .TONIGHT...Southwest winds 10 to 15 kt. Numerous showers and thunderstorms. Some thunderstorms may produce heavy rainfall and strong and erratic winds. Waves 1 to 2 ft subsiding to 1 ft or less. .MONDAY...Southwest winds 5 to 10 kt becoming south 10 to 15 kt in the afternoon. Isolated showers and thunderstorms in the afternoon. Waves around 1 ft. .MONDAY NIGHT...Southwest winds 10 to 20 kt. Showers and thunderstorms in the evening, then showers likely and a chance of thunderstorms overnight. Some thunderstorms may produce heavy rainfall. Waves 1 to 2 ft. .TUESDAY...West winds 10 to 15 kt becoming north in the afternoon. Chance of showers and thunderstorms. Waves 1 to 2 ft. $$ Carlaw