A New Jersey hiker has been missing for more than a week in Arizona’s Grand Canyon National Park where a raging “mega-fire” ...

Two massive wildfires burning in Arizona and Utah are doing more than scorching the landscape. They’re generating towering ...

Videos circulating on social media Thursday show the fire generating massive pyrocumulus clouds — also known as pyroclouds or "fire clouds." ...

Blazes in California in 2020 and in the years before have created multiple pyrocumulus clouds, with the Creek Fire in the Fresno area generating a mighty pyrocumulonimbus cloud last fall.

Pyrocumulus clouds can also increase wildfire spotting, which is when a fire produces sparks or embers that are carried by the wind and start new blazes beyond the zone of the main one.