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Inland Empire braces for more flash flooding

Traffic fords a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. The National Weather Service says to watch for flash floods Wednesday.
Traffic fords a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. The National Weather Service says to watch for flash floods Wednesday.
David McNew/Getty Images

The sticky air is sticking around. Monsoonal flows throughout Southern California could cause showers and intense downpours, especially in the inland and mountain areas. 

The National Weather Service posted flash flood watches for most of the southwestern interior of California as far east as the Santa Clarita Valley and the San Gabriel Valley. The flash flood watches continue through Wednesday evening, but there is a chance they may need to be extended because the moisture is expected to linger until Thursday.

https://twitter.com/NWSLosAngeles/status/892599565475500032

Heavy downpours from thunderstorms could bring up to an inch of rain to the valleys and interior desert regions. In addition to flash flooding, the influx of rain could also start mud and debris flows.

"Drivers could be washed off the road," Andrew Rorke with the National Weather Service says. "Fortunately with our radars, we've been able to get a warning out with plenty of lead time to alert people."

The wet weather began Tuesday. KNBC reported cars floating down the streets and fallen trees in 
Corona. The U.S. Open of Surfing in Huntington Beach was evacuated Tuesday afternoon because of thunderstorms and lightning.

Forecasters say drier conditions should start moving in by Friday.

https://storify.com/kpcc/la-rain