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.

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” ...

A wildfire in eastern Utah spawned a fire-induced tornado on July 12, experts with the U.S. National Weather Service confirmed on Wednesday. The tornado occurred during the Deer Creek Wildfire burning ...

A fire burning about 30 miles (50 kilometers) north of the entrance to Denali National Park and Preserve also prompted an evacuation “due to escalating fire conditions,” the Denali Borough ...

The wind-whipped wildfire in Arizona and another in Utah are so hot that they’re spurring the formation of “fire clouds” that can create their own erratic weather systems.

A fire burning about 30 miles (50 kilometers) north of the entrance to Denali National Park and Preserve also prompted an evacuation “due to escalating fire conditions,” the Denali Borough ...