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A bomb cyclone is a large, intense midlatitude storm that has low pressure at its center, weather fronts and an array of associated weather, from blizzards to severe thunderstorms to heavy precipitation.
Bombogenesis, also known as bomb cyclone, occurs when a mid-latitude cyclone rapidly intensifies, or strengthens, over a 24 hour period. This intensification is represented by a drop in millibars, a measurement of pressure used in meteorology. The intensification required to classify as "bombogenesis" varies by latitude. At 60 degrees latitude, it is a drop of at least 24 millibars over 24 hours.
Bombogenesis can happen because storms in the midlatitudes draw their energy from large temperature contrasts, when a cold air mass collides with a warm air mass, such as air over warm ocean waters.
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