Watch now: 2020 flash flood carries Bighorn runoff in Cañada del Oro Wash
Wildfires such as the Bighorn Fire north of Tucson leave the ground charred and unable to absorb water, which can increase flood risks. “Even a light rain can produce devastating flash floods and mudflows, often with little warning,†Pima County officials warned. In this July 2020 video, a debris flow oozes down the Cañada del Oro Wash.

