TNPSC Thervupettagam

Pyrocumulonimbus Cloud

August 14 , 2024 16 hrs 0 min 12 0
  • The wildfires are currently raging in the United States and Canada are so intense that they have created ‘pyrocumulonimbus’ clouds.
  • They have the potential to spit out thunder and spark more fires.
  • Before 2023, 102 pyrocumulonimbus were recorded globally in a single year on average - 50 of them were seen in Canada.
  • They occur only when there is an extremely hot wildfire.
  • Volcanic eruptions can also lead to the formation of pyrocumulonimbus clouds.
  • For instance, these clouds were formed during the Australian bushfires of 2019-2020 when temperatures crossed 800 degrees Celsius.
  • These clouds can reach heights of 50,000 feet and generate their own systems of thunderstorms.
  • These clouds can produce lighting, but do not generate much rain.
  • As a result, they can spark new wildfires many kilometres away from the main blaze.

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