Bomb Cyclone

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.
It becomes a bomb when its central pressure decreases very quickly—by at least 24 millibars in 24 hours.
It is a combination of rapidly declining pressure and extreme cold.
When a cyclone “bombs,” or undergoes bombogenesis or “explosive cyclogenesis”, it has access to the optimal ingredients for strengthening, such as high amounts of heat, moisture and rising air. Most cyclones don’t intensify rapidly in this way.
Basically, a bomb cyclone is a storm that intensifies very quickly, bringing intense impacts such as heavy snow, rain, high winds and coastal flooding

When a cold air mass collides with a warm air mass, such as air over warm ocean waters, bomb cyclones form. This quickly intensifying weather system is formed by a process known as bombogenesis, which results in the production of a bomb cyclone.
There are four active regions which are hot spots for the formation of a Bomb Cyclone:

Bomb cyclones are more common in the Pacific Ocean but do happen in the Atlantic Ocean.

In the Atlantic and northern Pacific, the tropical storms are called hurricanes.
In the northwestern Pacific, the same powerful storms are called typhoons.
In the southeastern Indian Ocean and southwestern Pacific, they are called severe tropical cyclones.
In the northern Indian Ocean, they are called severe cyclonic storms.
In the southwestern Indian Ocean, they are just tropical cyclones.

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