A fire official says at least 13 people have died in Northern California wildfires while 2,000 homes and businesses and other structures have been destroyed.
California Department of Forestry and Fire Protection Chief Ken Pimlott says there are 16 fires burning throughout the region with another blaze in Orange County.
At least 4,000 personnel are helping fight the blazes.
A Northern California county says it has received more than 100 missing-person reports as family and friends scramble to locate loved ones while wildfires ravage the state.
Scott Alonso, communications director for Sonoma County, says the reports have come via calls to a hotline the county set up for the missing.
It is possible that many or most of the missing are safe but simply can't be reached because of the widespread loss of cell service and other communications.
The firestorm consuming the state has killed at least 10 people, seven of whom were in Sonoma County.
More than 5,000 Southern California homes were evacuated Monday as fire crews struggled to battle a rapidly growing brush fire.
The blaze has scorched 6,000 acres and destroyed dozens of structures in Orange County.
Plumes of smoke were visible over Disneyland and officials issued air quality warnings for parts of Los Angeles County.