Episode 107: Flood After Fire: Understanding the Risks of Increased Flooding After Wildfires Damage the Land
In recent decades, wildfires have ravaged many areas of the country, especially the Western United States. Scientists note that climate change will worsen ongoing drought conditions, which will in turn increase the frequency and intensity of wildland wildfires. When the flames are extinguished, a new threat arises - flooding after fire. After large scale wildfires, the ground is left burned, barren, and unable to absorb water. That means when there's a rain shower or thunderstorm, rainfall that would normally be absorbed will run off and flow downhill, picking up ash and debris to form mudflows and flash flooding. This puts residents living in and around burn scars at greater risk. And because it takes time for the vegetation in burned areas to regrow, the risk of flooding after wildfire lingers for years. On today's episode, we turn it over to our partners in FEMA Region 8, located in Denver, Colorado, as we learn more about the risks of flash flooding and mud flows following a wildfire.