Two wildfires burning in the western United States — including one that has become a “megafire” on the North Rim of the Grand Canyon — are so hot that they are spurring the formation of “fire clouds” that can create their own erratic weather systems.

Wildfires burning at the Grand Canyon and in Utah are so hot that they're spurring the formation of "fire clouds" that can create their own erratic weather systems.

Firefighters have been fighting Dragon Bravo Fire at the Grand Canyon since July 4, but it has been intensifying due to unfavorable weather conditions. Lisa Jennings, a fire information officer with the Southwest Area Incident Management Team,