One of the pictures on the news last night showed an RV that was thrust vertically against a house. The people in in the RV managed to get the rear door open and the people in the house helped them get out into the SECOND floor of the house. Imagining the force of that flash flood is almost impossible.
That house was one of the rent cabins which I believe is now gone too. There were many RV's just thrown everywhere. It was a rush of 23 foot high water that is normally 3 foot deep. They said the water was moving at about 55 mph.