Dec 25, 2003
Steady light to moderate rain began falling over the burned areas of the San Bernardino Mountains on 0600 PST 12/24/03. Approximately 24 hours later, mud, rock, and debris flows were being reported along highways and roads leading into the mountain resort communities. By 0800 PST on Christmas Day, more than two inches of rain had fallen at many locations. Between 0800 PST and 1320 PST, rainfall rates increased from 0.20 to 0.70 inches per hour. Between 1300 and 1305 PST, mud, water, and rock sli
Source: NOAA National Weather Service Storm Events Database (event 5328282). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in San Bernardino County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.