Bomb cyclone forms off West Coast bringing heavy rain and high winds

9news.com

A bomb cyclone is a rapidly intensifying storm that occurs when a cold air mass meets a warm air mass, leading to a significant drop in atmospheric pressure. It is classified as a bomb cyclone if the pressure decreases by 24 millibars or more in 24 hours. Currently, a bomb cyclone is forming off the West Coast, affecting northern California and the Pacific Northwest. This storm is expected to bring heavy rainfall, flash flooding, and high winds, posing risks to travel and infrastructure. Bomb cyclones can occur in various ocean regions, not just the West Coast. Recent examples include Hurricane Milton in Florida and a notable storm in 2018 that impacted the Southeast with heavy snow and strong winds.


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