A drop in pressure in a system equals strengthening of the system.
This week's storm is expected to strike New England as a classic bomb cyclone with a dramatic 50-millibar dip in a 24-hour period.
M eteorologists say that the storm is experiencing "bombogenesis", meaning rapid atmospheric pressure has fallen below 24 millibars in less than 24 hours.
The term "bomb cyclone" has been trending on social media as the storm threatens to push frigid temperatures as far south as northern Florida.
"What is being dubbed a "Bomb-Cyclone" on social media actually has a more scientific name, bombogenesis", ABC7 forecaster Mackenzie Bart explained.
Florida Governor Rick Scott on Tuesday urged residents in the northern part of his Sunshine State to prepare for the cold. The storm will move up the East Coast over the next two days, bringing plenty of headaches.
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"Winter storm watches and warnings have been issued as far south as parts of north Florida, coastal Georgia, and the low country of SC, including the cities of Savannah, Ga". As the two air masses interact, the Earth's spin will help create a cyclonic effect called bombogensis that will cause air pressure to quickly drop. The real-world impact is a cold-core winter storm that resembles a tropical cyclone with regard to barometric pressure, wind speed, and precipitation, if not in temperature.
Tallahassee received.1 inches of snow accumulation by Wednesday morning, according to the National Weather Service.
At 5:45am on Wednesday, people living in north Tallahassee were seeing freezing rain and sleet.
Pressure and wind visualization of storm off the coast of New England on Thursday.
Most of the cancellations were in New Jersey, Boston and NY, which are seeing snowfall rates of up to 3 inches (7.62 centimeters) an hour and wind gusts up to 80 miles (128 kilometers) per hour.
Expect another Environment Canada extreme cold warning in the next day or two, with frigid air descending from the Arctic on Friday and into the weekend that could see daytime readings reach a unsafe low of -35 C when the wind chill is factored in.