A weather bomb, also known as an explosive cyclogenesis or bombogenesis, is a rapidly intensifying low-pressure weather system that occurs when the central pressure of a storm system drops by at least 24 millibars in 24 hours.
This process results in a sudden and significant increase in wind speeds, precipitation, and storm surge, which can have severe impacts on coastal communities and transportation systems.
Weather bombs are most commonly associated with winter storms in the North Atlantic, but they can occur in other regions as well.