Red flag warnings are in effect Friday in the southland due to gusty winds, low humidity and dry vegetation. In LA County, the warnings affect the San Gabriel and Santa Monica Mountains, the Angeles national forest and the San Fernando and Santa Clarita valleys.
Even stronger winds are expected Saturday, and forecasters say there's a good chance the fire weather watches in effect in other areas of the southland will be turned into more serious Red flag warnings.
Red flag warnings are issued for areas where "extreme fire behavior" may occur within 24 hours. Cal Fire urges all areas under a Red flag warning to be cautious, because even a small spark could cause a major fire.
The warning will be in place Friday night through Saturday morning, Bonnie Bartling of the National Weather Service told KPCC.
"If a fire started, it has potential for some very rapid fire growth," Bartling said.
Local firefighters have continued to build containment lines around the remnants of a destructive wildfire that erupted amid gusty Santa Ana winds earlier this week.
Authorities say there's 65 percent containment Friday morning and there was minimal fire behavior overnight.
The fire broke out Monday in the Anaheim Hills and spread over more than 14 square miles.
The latest assessment shows 25 structures were destroyed and 48 were damaged.
Forecasters say fire weather is returning to portions of Southern California.