cyclogenesis

[sahy-kluh-jen-uh-sis]

noun

Meteorology.

1. the development or intensification of a cyclone, usually in simultaneous occurrence with a decrease in atmospheric pressure.

   They’re studying the timing of cyclogenesis in relation to the onset of monsoon season.

Word History and Origins

Origin of cyclogenesis¹

First recorded in 1935–40; cycl(one) + -o- ( def. ) + genesis

Example Sentences

Dr Simon Lee, an expert in atmospheric science at the University of St Andrews, said the drop in pressure was expected to be twice the threshold needed to be called an explosive cyclogenesis – an unofficial term sometimes dubbed a "weather bomb" – and it could lower the boiling point of water which is normally 100C.

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BBC Weather's Matt Taylor confirmed that Ciarán has been classified as a weather bomb, or 'explosive cyclogenesis'.

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In a process called explosive cyclogenesis, the low pressure system will deepen by over 24 millibars in 24 hours.

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The wind and rain mayhem from San Francisco Bay south to Monterey Bay on Tuesday was caused by an extraordinary drop in barometric pressure over the eastern Pacific that meteorologists described as “explosive cyclogenesis.”

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A cyclogenesis refers to an intensification of a cyclone or low-pressure storm system.

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