“This is a dangerous and life-threatening situation,” the Kerr County’s Sheriff’s Office said.

The threat of heavy rain is “slight” for this weekend, but with the ground fully saturated in Kerr County, even small amounts of rainfall could cause flooding.

Residents in rural Vermont face damaged homes and washed-out roads after heavy rainfall caused flash flooding.

With more rain on the way, county officials ordered everyone living in flood-prone areas near the San Saba River to evacuate. Johnson said people were being moved to the San Saba Civic Center, which has become a safe, high place for people to receive aid and shelter.

Camp Mystic owners successfully appealed to the Federal Emergency Management Agency to redesignate some buildings that had been considered part of a flood-hazard zone.

"I think it's extremely troubling that it's a camp for children," Prof Pralle told the New York Times.