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Flash Flood — Riverside, CA

Nov 28, 2019

A cold unstable upper level low pressure system from the northwest brought widespread heavy rain, thunderstorms and mountain snow to southern California over the Thanksgiving holiday. One to three feet of snow fell above 5,500 feet in the mountains, impacting highways and passes. Big Bear and Mountain High reported 30 to 48 inches total. Highway 18 was closed through December 1st. Over 40 vehicles were stuck on Highway 74 and 371, while 20 vehicles were abandoned on Highway 38. There were 10 car

Source: NOAA National Weather Service Storm Events Database (event 866214). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Riverside, CA

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.

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