thea formed that rises above thick smoke can rise above any source of a strong of forest, a but also above a industrial. Like everything it occurs when the of the lower layers of the atmosphere (at ground level) is warmer and more humid than those at high altitudes. When the air becomes saturated, the water vapor condenses into droplets to create a cloud.
Unlike other clouds, the heat source does not heat through the, but another source of intense heat, coming from the ground. This cloud is officially recognized under the name cumulus flammagenitus by means of but it is more commonly known as pyrocumulus.
Tea #ElectraFire is capped and forms a Pyrocumulus (flammagenitus) cloud. These can produce their own weather. Fire is over 300 acres per Air Tac (ATGS = Air Tactical Group Supervisor, aka “spotter plane”) pic.twitter.com/teRg5bK5nX
—Randy C (@BigWhiteFireDog) July 5, 2022
The fire can generate its own weather
The pyrocumulus is the first stage of the development of this cloud, because under certain conditionssuch as humidity in the atmosphere and currents in the air, it can quickly change into pyrocumulus congestus : a convective cloud, associated with instability. This one can develop more, and increase in height, then it becomes a . This pyrocumulonimbus is just a cloud of which forms over the fire, fed by the heat of the fire. When it gains power, sometimes in just 30 minutes, this cloud can then generate . In the most extreme cases, lightning can start new fires even nearby!
These pyrocumulonimbus can also cause:can lead to real when smoke and flames from the fire are drawn in by the whirlwind. This kind of apocalyptic-looking situation, lightning and whirlwinds, occurs every year in the biggest fires on Earth, such as and D’ . Fires and volcanic eruptions can generate their own weather on the spot, sort of of short duration. Like any thundercloud, they can also lead to: which subsequently influence the behavior of the fire. They can also generate rain, but the heat from the fire causes the water to evaporate before it hits the ground.
Pyrocumulus can also form over an atomic explosion
The formation of pyrocumulus clouds over smoke oris quite common, also in France, but not all are equally impressive. Need water vapor , from a core, to form the droplets necessary for cloud formation. the smoke of or volcanic ash adds a lot of material to the atmosphere and therefore increases the chance of cloud formation.
The same process takes place over the detonation of the nuclear weapon: the ”that forms above the explosion of an atomic bomb is also a pyrocumulus cloud.