A fire-fueled thunderstorm cloud can form on top of a wildfire’s smoke plume, allowing the plume to grow vertically very quickly, Neil Lareau, a scientist and professor at the University of Nevada, Reno, told the Sacramento Bee in 2018.

The nearly 13,000-acre wildfire burning in eastern Utah crossed the Colorado border Monday night, joining four other fires already burning on the Western Slope, fire officials said.

Crews are fighting five western slope blazes, including one at the Black Canyon of the Gunnison. See the latest map of the Colorado fires.

The fires varied in size but have already forced several evacuations and pre-evacuation notices, closed a national park, and the Deer Creek Fire near the Utah state line has already destroyed at least five buildings.

Several wildfires continue to eat their way through western Colorado, with the Turner Gulch fire in Mesa County growing more than 6,000 acres overnight after crossing over from Utah. On the other side of the canyon,

Gov. Jared Polis issued a disaster declaration Sunday for five wildfires burning in several of the state's counties — here's what you need to know.

The South Rim Fire and other western slope blazes led to three Colorado counties being declared disasters. See the latest map of the fires.

Five wildfires are burning on thousands of acres in western Colorado, including one that crossed into the state from Utah, fire officials said Sunday.

LA SAL, San Juan County — No injuries were reported, but a fire engine was damaged when a massive "fire vortex" formed within a fire burning in southeast Utah over the weekend. A massive fire vortex damaged a fire engine during Utah's Deer Creek Fire. The fire has burned over 10,000 acres and remains 0% contained, with evacuations ongoing.