Flash Flooding 2 : Quickly forming floods with high-velocity flows. Often caused by stationary or slow-moving storms. Typically occurs on steep slopes and impermeable surfaces, and in areas adjacent to local streams and creeks
State of California, The Natural Resources Agency (Department of Water Resources) and The United States Army Corps of Engineers (Flood Plain Management Services Program), Attachment B: Glossary, State Wide Flood Management Planning Program (Flood State California), USA 2013. http://www.water.ca.gov/sfmp/resources/Attachment_ B_Glossary.pdf, (ND Emr/ Flood - Amer) {905}