California Governor Gavin Newsom has declared a state of emergency as authorities battle hundreds of fires burning around the state.
Most at risk is the city of Vacaville, home to about 100,000, which lies between San Francisco and Sacramento.
Officials went door-to-door overnight in a frantic effort to clear homes.
According to fire officials, 50 structures have burned down in Vacaville, with another 50 damaged by the fire.
