A debris flood was caught on camera last week near Bryce Canyon in Utah. It's a moving wall of mud, rocks, tree limbs and whatever else gets in it's way.
HLN meteorologist Bob Van Dillen says photographer David Rankin is lucky he wasn’t hurt.
You can see more of this amazing video on Rankin's website.
If you catch an amazing moment on video upload it to iReport. You could see it on HLN!