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pyrocumulus

American  
[pahy-roh-kyoo-myuh-luhs] / ˌpaɪ roʊˈkyu myə ləs /

noun

  1. a cloud produced from rising warm air and water vapour, caused by intense heat such as from fire or volcanic activity.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the days that followed, tourists on the South Rim of the canyon, and social media viewers around the globe, watched in awe as the fire grew so big and hot it created its own weather, sending pyrocumulus clouds billowing hundreds of feet into the air and dense smoke streaming down into the idyllic canyon below.

From Los Angeles Times

In this time lapse footage, the Dragon Bravo Fire produces a pyrocumulus cloud.

From Los Angeles Times

As the smoke rises, water vapor in the air condenses at high altitudes, creating what is known as a pyrocumulus cloud, or fire cloud.

From Los Angeles Times

One saving grace is that the pyrocumulus clouds can produce rain, which in some cases will suppress the very fire that created them.

From Los Angeles Times

Less fortunately, both factors can act to speed fire spread and promote pyrocumulus formation.

From Los Angeles Times