Dec. 24 (UPI) -- High winds, torrential rains and localized river flooding could make the Christmas holiday particularly challenging across much of Southern California.

A storm system is forecast to bring between 4 and 7 inches of rainfall to valleys and coastal areas located south of Santa Barbara County's Point Conception on Thursday and Friday before dissipating on Saturday, KTLA reported.

Further east in San Bernardino County, heavy rainfall caused flash flooding and debris fields early Wednesday.

The potential for heavy rainfall and localized flooding caused the National Weather Service in Los Angeles-Oxnard to issue a flash flood warning for Santa Barbara and Ventura Counties from 4:02 a.m. to noon PST on Wednesday.

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