This thread got me thinking about this. The tornado I referred to was this one.
http://www.youtube.com/watch?v=5o6K8teFQ_w

I live about 4 miles from the air base, and was actually driving on Pawnee street, which borders the base on the north side. This footage is actually after it hit the air base and moved towards the north east and the suburb of Andover. I don't remember exactly how long it stayed on the ground, but it was many miles. It hit the suburb of Haysville on the south, cut across Wichita from south central edge to the North East edge and moved into Andover. Much destruction.

When I got out of the ditch, there were power poles snapped cleanly about 10-15' up and guy wires wrapped around the tires of my car. The outside mirror was gone on the driver side, drivers window broken by a rock, dents all over the place. It started right up and I drove it away. I was covered in mud, leaves, grass and stuff. I'll never forget it.