Two huge wildfires driven by strong Santa Ana winds burned into neighborhoods near Los Angeles on Monday, forcing frantic evacuations on smoke- and traffic-choked highways, destroying homes and causing at least two deaths.
Around sunset, residents were warned to stay on alert during the night and winds more than 60 mph were forecast.
More than 1,000 firefighters and nine water-dropping aircraft battled the 4,700-acre Marek Fire at the northeast end of the San Fernando Valley, and the 5,000-acre Sesnon Fire at the west end.
Winds blew up to 45 mph with gusts reaching 70 mph at midday. They were forecast to diminish in the evening before roaring over 60 mph after 11 p.m.
"This fire has the real potential of moving from where it is now ... as far as Pacific Coast (Highway)," said Los Angeles County Fire Chief P. Michael Freeman.
Residents downwind were warned to remain alert into the night. "It can go from here to the ocean in a matter of two to three hours," said Los Angeles County Supervisor Zev Yaroslavsky.
Authorities confirmed more than three-dozen mobile homes burned at the Marek Fire and TV news helicopter crews counted about 10 homes destroyed by the Sesnon Fire. More than 15 square miles were charred by both flames combined.
"It is a blowtorch we can't get in front of," said Los Angeles County fire Inspector Frank Garrido.
Fire officials alerted other communities to the west in the Ventura County city of Simi Valley and south to Malibu, 20 miles away, as an ominous plume streamed over neighborhoods and far out to sea.
Residents were not allowed to drive into one of Porter Ranch's gated communities because officials wanted to keep roads clear for emergency vehicles. Instead they parked their cars, ran to their homes and carried out whatever they could carry in pillow cases, in their arms, sacks and suitcases. Some ran out clutching paintings.
Freeman warned people not to stay home after evacuation orders had been given. "You may not be able to even outrun this fire," he said.