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SUN VALLEY, CA - FEBRUARY 17: Firefighters prepare to transport a patient by ambulance at the scene of a car stuck in flooding as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year. (Photo by David McNew/Getty Images)

SUN VALLEY, CA - FEBRUARY 17:  Firefighters prepare to transport a patient by ambulance at the scene of a car stuck in flooding as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year.   (Photo by David McNew/Getty Images)

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SUN VALLEY, CA - FEBRUARY 17: Motorists ford a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year. (Photo by David McNew/Getty Images)

SUN VALLEY, CA - FEBRUARY 17: Motorists ford a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year.   (Photo by David McNew/Getty Images)

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SUN VALLEY, CA - FEBRUARY 17: A bicyclist rides along a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from areas denuded by a wildfire last year. (Photo by David McNew/Getty Images)

SUN VALLEY, CA - FEBRUARY 17:  A bicyclist rides along a flooded street as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from areas denuded by a wildfire last year.   (Photo by David McNew/Getty Images)

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SUN VALLEY, CA - FEBRUARY 17: The busy I5 freeway is shut down in both direction because of flooding as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year. (Photo by David McNew/Getty Images)

SUN VALLEY, CA - FEBRUARY 17:  The busy I5 freeway is shut down in both direction because of flooding as a powerful storm moves across Southern California on February 17, 2017 in Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from area denuded by a wildfire last year.   (Photo by David McNew/Getty Images)

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SUN VALLEY, CA - FEBRUARY 17: A man boards a bus on a flooded street as a powerful storm moves across Southern California on February 17, 2017 near Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from areas denuded by a wildfire last year. (Photo by David McNew/Getty Images)

SUN VALLEY, CA - FEBRUARY 17: A man boards a bus on a flooded street as a powerful storm moves across Southern California on February 17, 2017 near Sun Valley, California. After years of severe drought, heavy winter rains have come to the state, and with them, the issuance of flash flood watches in Santa Barbara, Ventura and Los Angeles counties, and the evacuation of hundreds of residents from Duarte, California for fear of flash flooding from areas denuded by a wildfire last year.   (Photo by David McNew/Getty Images)