FLOSSI & FEMA ON BOMB CYCLONE DUTY
A bomb cyclone is a term used to describe a rapidly intensifying storm system, usually occurring in mid-latitudes, that undergoes a process called bombogenesis. Here's a breakdown of what it means:
Key Characteristics
Rapid Pressure Drop:
A bomb cyclone occurs when the central pressure of a storm system drops by 24 millibars or more within 24 hours, signifying an extremely rapid strengthening.
Intense Weather Conditions:
High winds
Heavy rainfall or snowfall
Possible flooding in coastal or low-lying areas
Blizzards in cold climates
Formation:
Often forms when a cold air mass collides with a warm air mass, such as warm, moist air over the ocean meeting cold air from the poles.
Why It's Called a "Bomb" Cyclone
The term "bomb" refers to the explosive nature of its intensification, which can lead to sudden and severe weather impacts.
Impacts
On Land:
Extreme wind speeds can cause widespread power outages and structural damage.
Heavy precipitation can result in floods or snowstorms that disrupt transportation.
At Sea:
Bomb cyclones can produce massive waves and hazardous conditions for ships.
Geographic Occurrence
Bomb cyclones are common along coastlines, where cold and warm air masses meet. They are frequently observed off the east coast of North America, but they can also happen in other parts of the world.
Examples
A bomb cyclone caused the "Blizzard of 1978" in the U.S..
A 2021 bomb cyclone brought record rainfall and strong winds to California.