"Extreme fire conditions continue to challenge firefighters last night", Cal Fire said in a statement released on Sunday.
Ed Bledsoe rushed home, but was turned back by police.
"It's a hard fire to deal with", Austin said, noting the weather was hot and the terrain rugged.
Two others have died. The two fires, burning 50 kilometers apart, started Friday and were threatening more than 350 buildings.
The state is experiencing longer periods of warm temperatures and dry conditions that are making major fires almost a year-round possibility, said Daniel Swain, a climate scientist at the University of California Los Angeles.
Firefighters tried in vain to build containment around the blaze Thursday, but flames kept jumping their lines, he said.
One of them, 57-year-old David Franceschine, said he had been on a camping trip when the fire erupted.
Burned vehicles are seen in front of a wildfire-ravaged home, Sunday, July 29, 2018, in Redding, California.
The fire broke out on July 23, 2018, which forced tens of thousands of people to flee from their homes.
Firefighters are battling 17 wildfires across the state, which have consumed a combined 200,000 acres in terrain stretching from Southern California to the OR border, said Jonathan Cox, battalion chief and information officer with the California Department of Forestry and Fire Protection.
"What we're seeing not just here in Shasta County but literally statewide, fires that are growing exponentially", he said.
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Redding resident Tim Bollman hiked four miles to check on his home, only to find it had been completely destroyed.
Two firefighters were killed in the fire.
The fire was likely to regain strength later in the day when temperatures were forecast to spike around 110 degrees (43 Celsius) and winds were expected to kick up.
The Ferguson Fire in Mariposa County has burned 53,646 acres and is 30% contained.
The Carr fire - the largest wildfire now burning - has consumed more than 89,000 acres, destroyed 517 structures and damaged 135 others. "We are seeing fire whirls - literally what can be described as a tornado", California Department of Forestry and Fire Protection (CalFire) chief Ken Pimlott told media. Another firefighter hired to try to contain the flames with a bulldozer was killed Thursday, authorities said.
Bledsoe said even though the family was not told to evacuate, he feels more guilty than angry. The National Weather Service declared a red flag warning for high temperatures and winds and low humidity, effective until 8 AM Monday.
Residents who gathered their belongings in haste described a chaotic and congested getaway as the embers blew up to a mile ahead of flames and the fire leaped across the wide Sacramento River and torched subdivisions in Redding, a city of 92,000 about 100 miles south of the OR border.
A 70-year-old woman and her two great-grandchildren were among six killed when a wildfire raged through an area of northern California and engulfed entire communities, officials and family members said.
Authorities also issued evacuation orders in Napa County, famous for its wine, when a fire destroyed eight structures. They took all the defensive measures they could and evacuated Thursday before the order.
Anna Noland, 49, was evacuated twice in three days before learning through video footage that the house she last saw under dark and windy skies had burned.
Donna Araiza, founder of the Alyssa Araiza "Wings of Angels" organization for seriously ill children, said Stoke regularly donated to her group, as well as the Make-A-Wish Foundation. It pushed southwest of Redding, the largest city in the region, toward the tiny communities of Ono, Igo and Gas Point, where scorching heat, winds and bone-dry conditions complicated firefighting efforts.