The fire previously destroyed 22 structures, damaged six more and injured a firefighter.
In Santa Barbara County, 20 homes were burned and hundreds more were threatened as winds pushed the fire on Friday night, according to authorities. By 7:21 a.m. Friday, the Klamathon Fire had grown to 8,000 acres and was just 5 percent contained.
"A chain dragging on a trailer have caused fires and, again, the exhaust (from a vehicle) and, of course, someone smoking and throwing that out", said Burns. Governor Jerry Brown declared a state of emergency for the county.
The flames forced more than 2,000 people to flee their homes, and left thousands more without power, prompting the emergency declaration which frees additional funds for the firefighting effort.
East of Los Angeles in the San Bernardino National Forest, authorities ordered the evacuation of the community of Forest Falls, which has about 700 homes, as a quick-moving fire swelled to 1,000 acres. He said he hadn't yet told his two oldest children their home was gone. It is 5 percent contained.
In southern Colorado's Costilla and Huerfano counties, firefighters have encircled about 45 percent of a 167-square-mile (433-square-kilometer) fire that destroyed more than 130 homes.
NASA satellite data show the fire split into three parts: a patch north of the Klamath River in California, just west of the I-5 freeway; a large patch north and west of the Irongate Reservoir; and another bleeding into BLM roads in Oregon.
Mandatory evacuations were issued for 3,200 people, Santa Barbara County said in a news release.
Elsewhere in California, the 138-square-mile (357-square-kilometer) County Fire northwest of Sacramento was almost 50 percent contained.
The fire is one of several that erupted Friday as temperatures topped 100 degrees in many Southern California areas and embers ignited tinder-dry brush.
Some fires have been calmed by rain while others have been stoked by wind and hot temperatures.
There are now 1,083 firefighters working the blaze, including 88 fire engines and 31 helicopters.
"We bring the retardant to the firemen, but those folks on the ground, the men and women on the ground, they're really doing the tough work" he said.
Cal Fire reports "extreme" fire activity, with the fire growing in several directions, mostly northward.
Firefighters now have the 106,985-acre fire 55 percent contained, according to fire authorities.