A staled out surface boundary, strong instability, and thunderstorms rapidly developing over top that boundary created ideal conditions for a festival of funnel clouds and even a few brief tornadoes/landspouts over Iowa on Tuesday. The featured image is courtesy of the KCRG-TV webcam in Marion showing a funnel cloud / brief tornado near Ely. Many other funnel clouds were reported along the boundary. A time lapse from the aforementioned brief tornado is available on YouTube. Another time lapse from the Mount Vernon webcam nicely shows a number of funnel clouds.

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Tags:   funnel