MANITOU SPRINGS, Colo. -

Flash floods are becoming the new normal in Manitou Springs. Emergency managers say the mud, water and debris will be a threat for the next 10 years.

A siren warning of a looming flash flood went off just before 4 p.m. Wednesday. Ryan Horn didn't wait for it.

"I was already out of the house with my pets and my stuff probably 20 to 30 minutes before the sirens went off," Horn said.

Ryan and his wife Kim moved to Manitou Springs last year, right after the Waldo Canyon fire. They knew they were in a flood zone but never thought they had reason to worry until a mudslide swept through their neighborhood last week.

"Unless something completely catastrophic happens, I don't think we want to move away," Ryan said. "We'll deal with the street and the misery that comes with these floods, but I don't really want to move away."

But it's not the water or the mud they're worried about it. Their worries are bigger than that.

Kim Horn said, "Once the burn scar kinda washes out the trees and everything like that, then it's gonna be rocks and boulders that are coming down."