The Carr Fire, which broke out last Monday, has thus far killed six people, including two firefighters, and has forced about 39,000 people to evacuate their homes.
After receiving the mandatory evacuation call, they loaded up all their vehicles, including their giant RV they call a land yacht, and headed to Kelseyville.
The latest evacuations included about 1,000 people in Mendocino County, Undersherriff Matthew Kendall said today.
The desperate search for 70-year-old Melody Bledsoe and her great-grandchildren, Emily and James Roberts, came to a devastating end Saturday when relatives confirmed their bodies had been found in the family's burned out home in Shasta County.
Amanda Woodley, the granddaughter of Ed and Melody, shared her grief in a Facebook post over the weekend.
The Carr Fire, which has destroyed more than 650 homes, is the deadliest and most destructive of almost 90 wildfires burning from Texas to Oregon.
Together, they have destroyed at least six homes, were threatening more than 10,000 structures, forced the evacuation of a hospital in Lakeport and charred nearly 56,000 acres of mostly scrub and wildlands.
Shasta County Sheriff Tom Bosenko told the network there's an investigation into whether the Bledsoe home received a warning call or a knock on the home's door.
"We're always feeling rewarded when we're able can help someone but to know that we didn't do this on our own, that every person contributed", Russell said.
"Fires don't stop for sleep so this is a 24-hour battle for the American firefighting forces and extra people with the specialised skills that they need will help a lot."
California Department of Forestry and Fire Protection spokesman Anthony Romero said Sunday the fire in the Redding area grew by roughly 9 square miles (23 square kilometers) to 139 square miles (360 square kilometers).
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The National Weather Service predicted more hot and dry conditions, with wind gusts expected.
"We are well ahead of the fire activity we saw previous year", she said.
More than 5,012 structures were threatened by the fire, officials said. It is just 17 percent contained, according to Cal Fire.
He said the last significant rain in the Redding area was back on May 25.
Meanwhile officials said a second firefighter died fighting a huge blaze to the south near Yosemite National Park.
Bledsoe's husband wept as he recalled trying to get back to the family's house after running an errand on Thursday, only to learn the fire was closing in on them.
"It's a hard fire to deal with", Austin said, noting the weather was hot and the terrain rugged. More than 4,500 buildings were under threat, officials said.
The centre usually has eight dispatchers on duty, but overnight Thursday had at least 12 dispatchers, along with four supervisors and three managers who worked through the night, she said. "Somebody said, 'I just want to do so much more, ' and I want to tell you, you are the 'more'".
The Carr Fire, in particular, began as a manageable blaze burning through a few thousand acres before it quickly spread to 20,000 acres last week.
US President Donald Trump approved a state of emergency declaration in California due to the fires.
United States firefighters have worked to put out 89 large fires, which have burned more than 3,760 square kilometres over the peak summer period.