The two dozen major fires burning across Northern California are driven by millions of acres of fuel: Bone-dry trees and brush that have not burned in many years.
Wildfires in California have torched a record of more than two million acres. The record was hit as the wildfire season still has roughly two months to go in the most populous US state and as thousands of firefighters battle flames during a scorching heat wave.
Thousands of lightning strikes have hit the state in the past week, igniting fires that left smoke blanketing the region.
That is considered a stunning toll this early in California's fire season, which normally runs from August to November, and it comes as exhausted firefighters are already struggling to keep up with the far-flung blazes.