The national weather service warned weather conditions could lead to "dangerous and rapid irregular spreading of a large wildfire".
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A cat seeking refuge from a raging Northern California wildfire found a fine-feathered friend as it awaited rescue from the heat and flames.
The blaze in the Redding area, 225 miles (360 kilometers) north of San Francisco, is the largest of 18 wildfires burning throughout California.
The Carr Fire in Shasta and Trinity counties, which was sparked July 23 by a non-criminal vehicle fire at Highway 299 and Carr Powerhouse Road west of Redding, Calif., has burned more than 115,000 acres and was 35 percent contained as of this morning.
The two fires have killed eight people, with the Carr Fire alone responsible for six of the deaths.
In and around Redding to the north, some evacuees were allowed to return to neighborhoods where more than 1,000 homes were torched.
"We are making headway and we are feeling optimistic if we can just get a change in the weather", said Cal Fire spokesperson Sean Kavanaugh.
Of the 20 people reported missing as of Monday, all have now been accounted for.
"Last night, firefighters made good progress on increasing containment on the River and Ranch fires", said Ron Myers, a deputy incident commander with Cal Fire.
"We're going to have more fire, more destructive fire, [and] more billions that will have to be spent on it", Governor Brown said.
Fire officials said such blazes had been fuelled by several years of drought-dessicated vegetation, and stoked by frequent and persistent bouts of erratic winds and triple-digit temperatures.