cyclogenesis

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High-oblique view of the extra-tropical unnamed cyclone that merged with Hurricane Earl is featured in this image taken by an Expedition 24 crew member on the International Space Station (Sept. 2010).

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Solar system illustration. (planets; sun)

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Portrait of a mountain gorilla at a short distance. gorilla close up portrait.The mountain gorilla (Gorilla beringei beringei)

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Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays

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Aurochs. Bos primigenius. Skeleton. Extinct animal. Skeleton of an Aurochs, an extinct wild ox.

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Poker game. Card game. Royal Flush in poker. Hearts suit gambling

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US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.

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Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

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cyclogenesis: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	cyclone development

Photos

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Topics

cyclone cyclolysis tropical cyclone polar vortex bomb cyclone extratropical cyclone Icelandic low Aleutian low lee cyclone

Key People

Jacob Bjerknes

Norwegian-American meteorologist

Quiz

Umbrella colored like a rainbow sticking out above a sea of black umbrellas while it rains. (storm, weather)

Weather Words Vocabulary Quiz

Lightning over a farm field. Weather electricity thunderstorm light energy tree

Facts You Should Know: Weather Quiz

rain. Child in the rain, wearing a rain coat, under a yellow umbrella. April Showers weather climate rain storm water drops

April Showers to March’s Lions and Lambs