Jul 11, 1999
Thunderstorms redeveloped during the afternoon and moved slowly west southwest down the valley. Rainfall rates were high with over an inch of rain falling in less than a half hour. Radar rainfall estimates were near three inches. As a result creeks and streams feeding into Mill Creek rapidly filled and created a 25 foot high wall of water, rocks, and mud. Seven homes were destroyed, 11 sustained moderate to severe damage, and 35 others had minor damage. Roads were covered with 10 feet of ro
Source: NOAA National Weather Service Storm Events Database (event 5706929). 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.