The Bootleg fire in Oregon, now roughly the size of Los Angeles, is so intense that it has created its own weather system, causing winds that have further fanned its flames.
It has been burning for two weeks and barely a third of its perimeter has been contained.
The Dixie fire in California exploded in size to roughly 94 sq miles (243 sq km) on Tuesday, and is only 15% contained.
It broke out on 13 July
