Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
265 FZUS53 KLOT 201453 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 953 AM CDT Mon May 20 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. LMZ740-741-202115- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- 953 AM CDT Mon May 20 2024 .REST OF TODAY...Southeast winds 10 to 15 kt becoming southwest 15 to 20 kt late. Chance of showers and thunderstorms in the afternoon. Waves 1 to 3 ft. .TONIGHT...Southwest winds 10 to 20 kt becoming south and diminishing to 5 to 10 kt overnight. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms overnight. Waves 1 to 3 ft subsiding to around 1 ft. .TUESDAY...Southeast winds 5 to 10 kt becoming south 15 to 25 kt. Chance of showers and thunderstorms. Waves around 1 ft building to 2 to 4 ft. .TUESDAY NIGHT...South winds to 30 kt becoming southwest 20 to 25 kt overnight. Showers and thunderstorms likely in the evening, then chance of showers and thunderstorms overnight. Waves 2 to 4 ft. Winds and waves will be higher in and near storms. $$ LMZ742>745-202115- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 953 AM CDT Mon May 20 2024 .REST OF TODAY...South winds 10 to 15 kt becoming southwest 15 to 20 kt. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .TONIGHT...Southwest winds 10 to 20 kt becoming south and diminishing to 5 to 10 kt overnight. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms overnight. Waves 1 to 2 ft. .TUESDAY...South winds 5 to 10 kt increasing to 15 to 25 kt. Chance of showers and thunderstorms. Waves around 1 ft building to 1 to 3 ft. .TUESDAY NIGHT...South winds to 30 kt becoming southwest 20 to 25 kt. Showers and thunderstorms likely. Waves 2 to 4 ft. Winds and waves will be higher in and near storms. $$ Yack