Video footage of a flash flood

My uncle recently forwarded me a link to a You Tube video that is footage of an actual flash flood. I watched several others too, but I wanted to share this one for several reasons: 1) You can clearly see how the initial part of the flood is filled with lumber and debris - just like the flash flood we experienced in the Narrows; 2) The narrator does a good job explaining the process; and 3) It shows a huge boulder being rolled by the flood waters. On the other hand, keep in mind that the flash flood in the Narrows was funneled through a narrower canyon, so the water was higher, and was pushed through with more force since it couldn't spread out. We couldn't even see the boulders, only hear them bouncing along the bottom of the river bed. Also, the one we escaped dragged full grown trees along with it.

Here is the link:

 

http://www.youtube.com/embed/_yCnQuILmsM?feature=player_embedded