It had burned 8,000 acres to 12,000 acres and destroyed more 50 structures, such as homes and barns, he said.
The CHP reports they have had to rescue 42 people so far because of the fires.
"Local fire departments are on scene and we will notify you if any evacuations are called for", the Sheriff's Office said. Jerry Brown has declared a state of emergency in Sonoma, Napa and Yuba counties because of multiple fires in the areas.
Multiple fires ravaged Napa and Sonoma counties on Monday, forcing widespread evacuations across wine country and burning tens of thousands of acres. Officials had closed 33 roads as of 6:30 a.m and set up an emergency shelter capable of hosting large animals at the Yuba-Sutter fairgrounds. The smaller Nuns Fire, in Sonoma, was at 5,000 acres by about midday, officials said.
Major structures and businesses damaged or destroyed include the Hilton Sonoma Wine Country and Luther Burbank Center for the Arts in Santa Rosa, and the Silverado Country Club in Napa. Mandatory evacuations are in effect in several areas and almost 20 shelters have opened from Cloverdale to Petaluma and from Guerneville to Sonoma.
The fire leveled entire blocks in the Fountaingrove area of Santa Rosa, where three-story homes were burning along Thomas Lake Harris Drive.
If O'Gorman hadn't been coming home from work to wake her family, "we would have been in the house trapped", she said. Much of a mobile home park behind the Kaiser facility burned, CNN affiliate KPIX said.
The "Atlas" fire, meanwhile, had burned through an additional 25,000 acres in the hills above Napa County.
Upwards of 300 firefighters are battling blazes in Napa County.
The fires were first reported Sunday and Gov.
Brian Alexander, a 34-year-old Santa Rosa resident, told CNN about stepping in to help his neighbors as the inferno surrounded his apartment complex.
He said crews had no containment on the quick-moving fire. (AP Photo/Jeff Chiu) Trees burn behind houses in a residential area in Santa Rosa, Calif., Monday, Oct. 9, 2017.
"That's when we said, 'It's time to go, '" Regan said. Evacuation orders have been issued for about five miles of roads surrounding the blaze, which began as a vegetation fire around 9:20 p.m. on Sunday. "The causes will be under investigating, for sure".
Sonoma County: Two evacuation centers are open in the city of Sebastopol at the Sebastopol Community Cultural Center 390 Morris Street and another at the Veterans' Memorial Building at 282 South High Street.