Almost 14,000 homes have been destroyed.
The wildfire, which ignited in a rural area November 8 before consuming the town of Paradise and roaring through nearby communities, has left a staggering toll.
Starting on November 8, the fire burned almost 154,000 acres and destroyed almost 14,000 homes.
Crews continue sifting through muddy ash for human remains in and around the devastated town of Paradise.
Rainfall earlier this week did not trigger any large debris flows, but Roth said the danger of a mudslide will remain far into the future for hillsides that flames have stripped of vegetation.
The California Department of Forestry and Fire Protection said in an incident update that containment is now at 100 per cent.
The search for remains came to a temporary standstill in Paradise on Friday after rain and strong winds made fire-weakened trees unsafe, CNN affiliate KCRA reported.
'Within the perimeter, there are stumps and burning roots that are underground, and we still need to try to pull those up and remove the heat'.
"With the rain we have been experiencing, residents should be aware of potential risks associated to the weather", the Butte County Sheriff's Office warned.
According to the latest incident update from California fire authorities, the cause of the fire remains under investigation. Fieri, who lives in Santa Rosa in the Bay Area, cooked for first responders on November 11, and has helped feed victims of past fires.
Los Angeles County sheriff's officials said they were in the last phase of repopulating Malibu and unincorporated areas of the county.
In Southern California, more residents were allowed to return to areas that were evacuated because of the 151-square-mile (391-square-kilometer) Woolsey Fire as crews worked to fix power, telephone and gas utilities.
More than 50,000 were forced to flee the flames, many who have lost their homes and were now living in evacuation shelters and makeshift camps.
Meanwhile, the Butte County Sheriff's Office said in a statement that 249 people remained unaccounted for till Saturday, down from more than 1,000 days ago.