The bomb cyclone, explained

It’s not a new term and it happens more often than you think.

The Atlantic seaboard is being impacted by the first major Winter storm of the season. As it races toward the New England states, the nor’easter has undergone rapid strengthening. This strengthening is called bombogenesis, or a bomb cyclone.

So what does that mean? A bomb cyclone is an area of low pressure that drops at least 24 millibars in a 24 hour period. This rapid drop in pressure can lead to large waves, strong winds, heavy snowfall rates and even thundersnow.

It is common for nor’easters to experience a pressure drop of this magnitude.


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