Sep 22, 2007
An unseasonably cold early season storm moved south from western Canada, bringing significant weather to sections of Southern California between the 20th and 22nd. Most areas received between one quarter and one inch of rainfall with locally higher amounts associated with thunderstorms. In fact, some thunderstorms produced rainfall rates up to 0.70 inches in 20 minutes. With such intense showers, numerous reports of flash flood and debris flows were received in and around recent burn areas. In a
Source: NOAA National Weather Service Storm Events Database (event 52557). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Los Angeles County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.