Cal Fire said one person was killed in the Klamathon Fire, which is burning Siskyou County, an area located near the OR border.
Roadway closures in the area of the fire were implemented to keep people out of the way of firefighters, and the California Highway Patrol said Saturday that "all roads northbound from La Patera Lane to Patterson Avenue along Cathedral Oaks Road are closed to the public".
By Saturday morning, the fire was said to only be 5 percent contained although the flames had died down significantly.
Wildfires that have destroyed dozens of buildings and caused at least one death continue to ravage California as a heat wave sweeps the southern part of the state.
The 400-acre brush fire is swallowing up homes in the densely populated suburb of Alpine. It spread to vegetation before burning up to 20 other buildings, fire officials said. He says that as of Saturday morning, the fire seems to be moving away from homes and other structures.
"We have put everything on this", Cal Fire Deputy Director Mike Mohler said.More news: Ex-Pakistan PM Nawaz Sharif sentenced to 10 years over corruption
Evacuations have been ordered in the communities of Hornbrook, Hilt, Colestin and Irongate Reservation, with warnings to be ready in a broader area. At the time of writing the fire is zero percent contained.
Hundreds of evacuation orders have been put in place, and flames have already reached multiple structures.
Farther south, a fire in the San Bernardino National Forest grew to 1,000 acres and prompted the evacuation of Forest Falls, a town of about 700 homes.
Bushfires in the west of the United States have killed one person and torched hundreds of homes, with new fires sweeping Southern California as the state struggles through a record-setting heatwave.
Tricky high winds made the blaze hard to coral as it burned down close to a dozen homes - while leaving some nearby structures unharmed.
The fire spans about 75 square miles (193 square kilometers) near a popular fishing reservoir about 80 miles (130 kilometers) southeast of Salt Lake City, according to the Utah Division Forestry Fire State Lands.