The National Weather Service issued red flag warnings for parts of multiple counties, including San Diego, Los Angeles and Ventura — collectively affecting more than 17 million people through Friday afternoon.
Red flag warnings are issued when an area experiences conditions ideal for sparking and expanding fires, which may occur when winds are strong, humidity is low and temperatures are warm, the NWS explained.
In the Los Angeles neighborhood of Pacoima, wind gusts as high as 74 mph swept through on Thursday, the agency said. And in nearby Sylmar, a few brush fires sprang up, but firefighter crews swiftly contained them.
CalFire said it has increased the number of fire engines and other resources ahead of the elevated fire weather, which could remain in the region through Saturday, according to CNN meteorologist Rob Shackelford.
In North Hollywood, the strong winds toppled a tree through the roof of a home, KABC reported.
Downed trees in some neighborhoods in Orange County also caused damage, the affiliate reported.
The state’s wildfire season has been devastating so far this year with 8,367 blazes having scorched more than 3 million acres, according to CalFire. The fires have been exacerbated by climate change creating hotter and drier conditions.
“The critical fire weather area encompasses more than 3 million people from Thursday overnight into Friday morning, and this number drops to more than one million for mainly Los Angeles and Ventura counties on Friday,” CNN meteorologist Rob Shackelford said. The elevated threat could remain in the region through Sunday, he said.
Red flag warnings are issued when an area experiences conditions ideal for sparking and expanding fires, which may occur when winds are strong, humidity is low and temperatures are warm, the NWS explained.
CNN’s Andy Rose contributed to this report.