Yes, remember it is the ROCKY mountains. Rock does not absorb much water. Most rain turns to run off after the first 30 min. It has been raining for 3 days now. Also, the recent wild fires have destroyed much of the forest and vegetation that would have absorbed some of the water.
Some places have tornado sirens, mountain towns have flash flood sirens. Believe me, if you hear one of those go off, you start climbing right away to high ground if you want to live. A 10 to 20 foot wall of water coming down the canyon at 30 to 40 mph can seriously ruin your day.
Thanks all for the info. I understand more now about the problem.
they are saying there are 10’ walls of debris up the canyons and fear what happens when they give way. going to be a lot of damage. even “regular” neighborhoods in aurora have water washing up into driveways