Noun
pyrocumulonimbus (plural pyrocumulonimbi)
An extreme manifestation of a pyrocumulus, generated by the heat of a wildfire, that often rises to the upper troposphere or lower stratosphere.
Synonym: cumulonimbus flammagenitus
Coordinate term: thunderhead
“We woke to an eerie yellow brown light that quickly darkened as the pyrocumulonimbus cloud thickened above the area,” she said. Source: Internet
A massive fire cloud known as a pyrocumulonimbus formed over the fire, which started east of the town of Loyalton. Source: Internet
It’s an explosive storm called pyrocumulonimbus and it can inject particles as high as 10 miles into the air. Source: Internet
This California fire season has also spawned some pyrocumulonimbus clouds, such as the one produced by the which started Sept. 4 and is still burning in Fresno and Madera counties. Source: Internet