It is only 30 percent contained so far, with authorities warning it could take another week to get the blaze under control.
Since we last reported on the fire two days ago it has grown by 120,000 acres, according to the numbers released by CAL FIRE Monday morning. "That's one of those records you don't want to see".
The Mendocino Complex Fire expanded almost 80 percent over the weekend and has now scorched more than 283,000 acres north of San Francisco, forcing more than 20,000 people to evacuate and destroying at least 75 homes so far. That doesn't happen. That just doesn't happen, ' he said.
Although the Mendocino Complex Fire is record-setting for California, it does seem to be following a trend of increasingly massive and unsafe fires.
"It's been pretty insane - they're calling this the new norm", said Omar Estorga, captain of a crew working on the Carr Fire.
More than 14,000 firefighters are battling the wildfires across California.
Trump's tweet comes after California water officials ignited a debate this summer by proposing a plan to limit the amount of water that can be drawn from the San Joaquin River for use in cities and farmlands.
With several major wildfires burning across California, officials suggested they would decide where to deploy the extra firefighters once they arrived.
How many homes have been destroyed by the Mendocino Complex Fire?
According to a statement from Cal Fire, full containment is expected on September 1.
"There are also significant terrain hazards for firefighters". On Monday he reminded people that the fires in the Western U.S. have been more intense due to an overabundance of dead timber that officials are not able to remove without facing lawsuits.
The fire has destroyed dozens of homes and other buildings, and more than 11,000 structures remained threatened, the department said.
The Ferguson Fire near Yosemite National Park has claimed two lives and closed the park indefinitely.
It's unclear whether Trump's call for tree clearing "to stop fire from spreading" referred to creating fire lines by felling trees (a common and effective firefighting strategy) or to the mistaken notion that cutting down the nation's forests is a good way to restore them to a healthier, more fire-resistant condition.