An evacuation order was issued about 3:15 on Saturday afternoon, with at least 1,500 homes threatened, the Los Angeles County Fire Department told the LA Times.
The fire’s rapid growth has been fueled by “excessive heat, low humidity, extreme dry fuels that have not burned for several decades, and very rugged terrain,” said Los Angeles County Supervisor Michael Antonovich, who represents the area and attended a news conference held on the weekend.
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L.A. County Fire Chief Daryl Osby told the LA Times “Probably five years ago, based on our fire behavior, if we had a similar fire, we would have probably caught this fire at the ridge,". “Because this is the fifth year of an ongoing drought ... this fire has increased to 11,000 acres just overnight.''
The LA wildfire spread into new pockets of the mountainous area including steep hillsides and deep ravines which fire crews have great difficulty accessing.