about 4 years ago I was in Clemson SC at the post office . The campus has their own dopppler radar and warning system The sirens went off. I walked outside in the parking lot and the sky was black and green and The best Way I can explain it as you looked up it the clouds were moving really low and fast like it was traveling to a certain point like water does in a draining bathtub...I watched the clouds as they started to churn then the funnel cloud dropped to the ground about 200-300 yards in front of me..It was HUGE and scary as HELL..It took a minute for it to register what I was seeing before me..it wasn't but like a f-1...100-120 mph winds but it scared the Be-jessel out of me..1st time I ever saw one in person and I hope the last time...here is a pic I found on line and a you tube Video a Clemson University student took from the dorms about a mile away...It was well formed at one point. There use to be pics on-line from a distance some people took I can no longer locate That showed the tornado fully formed .
Its hard to tell How big those things really are unless you are up close and personal..they are Evil..
I cannot imagine the F-5 Those people went thru...
http://www.independentmail.com/news/...derson-county/
http://www.youtube.com/watch?v=nHuQgAYAgp0