LOS ANGELES — Helped by cooler temperatures, firefighters gained ground Friday against three blazes in Southern California and authorities began scaling back evacuation orders that displaced thousands of people.
The largest is the Bridge Fire east of Los Angeles, which has burned 81 square miles (210 square kilometers), torched at least 33 homes and six cabins and forced the evacuation of 10,000 people. The cause of the fire is not yet known. After days of burning without fire crews being able to stop its forward march, it was 3% contained on Friday.
''Firefighters made great progress on the ground, aided by aircraft to attack the fire aggressively 24 hours per day,'' the California Department of Forestry and Fire Protection said in a statement.
While firefighters have made significant progress, the three major wildfires that have ravaged the mountains east of Los Angeles, destroying dozens of homes, injuring a dozen people, and burning more than 155 square miles (400 square kilometers), still pose significant threats to some communities.
California is entering the height of wildfire season and has already seen nearly three times as much acreage burn as during all of 2023.
Evacuation orders were being scaled back, including in parts of Big Bear where the Line Fire forced thousands of people to flee. Authorities say a delivery driver purposely started the blaze Sept. 5.
The fire has charred 59 square miles (153 square kilometers) in the San Bernardino mountains, where Southern Californians ski in the winter and mountain bike in the summer. It was 21% contained as of Friday.
The Line Fire is burning through dense vegetation that grew after two back-to-back wet winters when snowstorms broke tree branches, leaving behind a lot of ''dead and down fuel,'' Cal Fire Operations Section Chief Jed Gaines said.