The Los Angeles county fire department tweets that the fire is headed to the ocean, punctuating the message with the declaration: "Imminent threat!"
The Woolsey Fire was zero percent contained as of 4 a.m. Friday after scorching 8,000 acres and destroying at least 30 homes in the two counties, fire officials said.
The National Weather Service now predicts heavy winds throughout Friday morning could potentially help spread the blaze.
CAL Fire reports they are assisting with a wildfire that has broken out in Ventura County.
The Woolsey Fire broke out about 2:25 p.m. Thursday near the Rocketdyne facility, south of Simi Valley, pushed by strong Santa Ana winds, which have been preventing fire commanders from ordering aerial assaults.
With the area still reeling from the shooting at the Thousand Oaks bar, the Hill fire has spread to 10,000 acres, quickly shutting down the 101 Freeway.
Portions of Southern California remain under siege as two large brush fires are threatening numerous communities.
The Thousand Oaks Teen Center, which originally opened for families trying to find loved ones during the Borderline Bar & Grill mass shooting, is now open to evacuees of the Woolsey Fire that continues to burn along the Ventura and Los Angeles County line Friday.More news: Harper to draw ‘historical’ offers — Major League Baseball free agency
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Both fires erupted Thursday afternoon and have grown rapidly.
More than 2,000 fire officials among 59 crews were working to contain the fire as of Friday morning.
The city of Malibu is under a mandatory evacuation order as the Woolsey fire threatens the communities of Calabasas and Malibu, covering as much as 8,000 acres as of Friday morning.
L.A. County Fire Dept. Battalion Chief Trey Espy confirmed 15 to 20 homes were impacted in the area of Kellwood Ct. and Churchwood Dr. and additional homes were impacted in nearby areas.
Mandatory evacuation orders were issued for California State University Channel Islands and for the Camarillo Springs area, according to Ventura County Fire Department officials.
Firefighters cited heavy winds, kicking up to 20 to 25 miles per hour, and hard terrain as challenges in effectively fighting the fire.
Evacuation centers are open Ventura and Los Angeles counties.
However there were no immediate reports of deaths or serious injuries. No roadways were closed as of Friday.