Four years ago today in Wisconsin, this brief tornado spun at 17 billion quintillion gazillion miles per hour, breaking the sound barrier or something like that

(Audible "crack" can be heard emanating from the collapsing vortex ~0:17, I believe one of only 2 videos that captured it)

Full video edit of the Watertown, #SDwx tornado up. It's rare I get a "video tornado" these days. This is the first time I've had chase video up within a week since...before grad school.

www.youtube.com/watch?v=jZh-...

***times 1800, one for each South Dakota stovepipe