A number of years ago, (20?) a tornado ripped through Cleveland, GA and then up the valley below Mt. Yonah and across the gap right next to it. Yonah is the first big granite crag north of Atlanta, about 250' slabs covered with bolts because the nearby Rangers' camp uses it to teach climbing--and it's a hoot to see. Turns out there were two guys on the rock when the twister went by, one of them said he thought it passed about a 1/4 mile away, and they had never been so happy for all the bolts, for all the good it would have done them. That must have been a trousers filling event.