Oct 13, 2018
A strong upper level low pressure system moved into far southeast California during the early morning hours on October 13th and triggered the development of widespread showers and thunderstorms. Many of the stronger thunderstorms produced intense and very heavy rain that led to episodes of flash flooding across portions of eastern Riverside County. Park and Forest Service personnel reported many paved roads in Joshua Tree National Park flooded and washed out starting shortly after midnight. Fla
Source: NOAA National Weather Service Storm Events Database (event 781488). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Riverside County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.