explosive cyclogenesis

American  

[ik-sploh-siv sahy-kluh-jen-uh-sis] / ɪkˈsploʊ sɪv ˌsaɪ kləˈdʒɛn ə sɪs /

noun

Meteorology.

1. the system that rapidly develops when the central barometric pressure of an extratropical cyclone drops at least 24 millibars in 24 hours, producing potentially hurricane-force winds with very heavy rain or snow.

   Clusters of explosive cyclogenesis persisted for a week, with significant consequences for the southern Alaskan coast.

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Etymology

Origin of explosive cyclogenesis

First recorded in 1950–55

Example Sentences

But as the low pressure engages with the jet stream it will undergo a process called explosive cyclogenesis, where the central pressure drops by 24 millibars or more in 24 hours.

From BBC • Jan. 8, 2026

Goretti, named by French forecasters, is likely to undergo "explosive cyclogenesis" - also known as a "weather bomb".

From BBC • Jan. 7, 2026

Goretti will likely undergo "explosive cyclogenesis" on Thursday - sometimes called a "weather bomb".

From BBC • Jan. 6, 2026

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

From BBC • Oct. 31, 2023

In some circumstances, the atmospheric conditions can create explosive cyclogenesis - or a weather bomb - just to the west of the UK, which can bring the most damaging winds.

From BBC • Feb. 1, 2023