Updated 5 hours ago
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A low pressure system drifting in from Arizona prompted the National Weather Service to issue a flash flood warning for parts of eastern Riverside County Sunday.
The warning will be in place through 6:45 p.m. for Riverside County desert areas, including Chiriaco Summit, Box Canyon Road and the North Shore area near the Salton Sea, according to the NWS.
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Forecasters said thunderstorms producing heavy rain were spotted across the warned area and had already dropped between a half inch and two inches of rain.