Three states on the West Coast are affected by a hundred fires.
In California, at least 19 people have died and more than 4,000 structures have been destroyed since the wildfires started four weeks ago.
In Oregon, several people have died and more than 500,000 were evacuated from the fire.
In the state of Washington, more than 130,000 hectares have already been burned.
Firefighters from different parts of the world help put out the flames.