Bomb Cyclone

In late December 2025, a powerful bomb cyclone swept across the northern United States, triggering blizzard conditions in the Midwest and the East Coast.

  • A bomb cyclone is a rapidly intensifying storm system in which the central air pressure drops by at least 24 millibars within 24 hours.
  • This process, known as bombogenesis, sharply increases the pressure gradient and results in extremely strong winds.
  • Storms undergoing bombogenesis are among the most violent large-scale weather systems, capable of causing property damage, power outages, fallen trees, and dangerous travel conditions.
  • Bomb cyclones occur most often in fall and winter, when frigid continental air collides with ....
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