Jul 26, 2021
A retrograding upper level low combined with highly anomalous moisture values allowed for showers and thunderstorms to develop across southeast California and produce several instances of flash flooding along with isolated damaging wind gusts. Showers and thunderstorms began developing across southeast California late in the morning and into the afternoon on the 25th. Some thunderstorms became strong to severe, with one severe thunderstorm producing some damage in Joshua Tree National Park. Show
Source: NOAA National Weather Service Storm Events Database (event 977063). 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.