Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
186 FZUS53 KLOT 181417 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 917 AM CDT Tue Jun 18 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>742-182100- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 917 AM CDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...South winds 20 to 25 kt. Slight chance of showers and thunderstorms. Waves 2 to 4 ft. .TONIGHT...South winds 20 to 25 kt diminishing to 15 to 20 kt. Partly cloudy. Waves 2 to 4 ft. .WEDNESDAY...Southwest winds 10 to 15 kt becoming south in the afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .WEDNESDAY NIGHT...South winds 10 to 15 kt becoming southwest 5 to 10 kt overnight. Slight chance of showers and thunderstorms. Waves 1 to 2 ft. $$ LMZ743>745-182100- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 917 AM CDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...South winds 20 to 25 kt. Slight chance of showers and thunderstorms. Waves 1 to 3 ft. .TONIGHT...South winds 20 to 25 kt diminishing to 10 to 20 kt. Partly cloudy. Waves 1 to 3 ft. .WEDNESDAY...Southwest winds 10 to 15 kt becoming south in the afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves around 1 ft. .WEDNESDAY NIGHT...South winds 5 to 10 kt. Mostly clear. Waves around 1 ft. $$