Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
704 FZUS53 KLOT 220240 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 940 PM CDT Sat Sep 21 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>742-220945- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 940 PM CDT Sat Sep 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SUNDAY AFTERNOON THROUGH MONDAY EVENING... .REST OF TONIGHT...South winds around 10 kt. Chance of showers and thunderstorms late. Waves 1 to 2 ft. .SUNDAY...Southwest winds 10 to 20 kt becoming west in the early afternoon, then quickly becoming north to 30 kt late. Showers and a chance of thunderstorms. Waves around 1 ft building to 1 to 2 ft early in the afternoon, then quickly building to 3 to 6 ft late. .SUNDAY NIGHT...North winds to 30 kt. Showers likely and slight chance of thunderstorms in the evening, then slight chance of showers overnight. Waves 5 to 8 ft occasionally to 10 ft. .MONDAY...North winds 20 to 25 kt. Slight chance of showers in the morning. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. $$ LMZ743>745-220945- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 940 PM CDT Sat Sep 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY EVENING... .REST OF TONIGHT...Southeast winds around 10 kt becoming south late. Chance of showers and slight chance of thunderstorms late. Waves around 1 ft. .SUNDAY...Southwest winds 10 to 15 kt. Showers and slight chance of thunderstorms in the morning, then showers and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft. .SUNDAY NIGHT...North winds to 30 kt. Showers likely and a chance of thunderstorms in the evening, then slight chance of showers and thunderstorms overnight. Waves quickly building to 5 to 8 ft occasionally to 10 ft by mid-evening. .MONDAY...North winds 20 to 25 kt. Slight chance of showers in the morning. Waves 4 to 7 ft occasionally to 9 ft. $$ Kluber