What is a 'bomb cyclone'? Here's what you need to know about the storm headed toward California
Briefly

A bomb cyclone is a term given to a rapidly strengthening storm that fulfills one important criterion: pressure must drop 24 millibars within 24 hours.
The term 'bomb cyclone' dates back to a 1980 paper by MIT meteorologists, who adjusted earlier definitions based on latitude for rapid storm deepening.
The term 'bomb' was added due to the explosive nature of these storms resulting from rapid pressure drops, although one author prefers a different terminology.
To calculate pressure drops for a bomb cyclone, you must consider latitude, using trigonometric functions to derive the necessary criteria based on regional characteristics.
Read at ABC7 San Francisco
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