The heat and smoke from the fires led to the formation of massive thunderstorms known as pyrocumulonimbus. (newscientist.com)
The record - breaking 2017 wildfires in the US generated massive thunderstorms that pumped as much smoke into the stratosphere as a volcanic eruption (newscientist.com)
Haha well we had a massive thunderstorm last night so I think I spoke too soon! (amuse-your-bouche.com)