Meteorologists say,Bomb cyclone“From Friday night (January 28), many parts of the northeastern United States will have a blizzard-like situation, but what’s behind this explosive weather is the path of the storm. Why is it “in the air”?
Currently, in cities along the coast of New England, storms are projected to snow at least one foot (30 centimeters). Hurricane-Reports from force a gust of wind Weather.com.. When all is said and done, storms can affect the New England coast from Maine to Virginia, with most of the storms hitting Rhode Island and Massachusetts on Friday night. “Models continue to show potential Nor’easters on weekends, mostly from the end of Friday to Saturday,” said meteorologist Bryan Miller. CNN..
Such Nor’easter is an extratropical cyclone that begins as a cyclone over the North Atlantic Ocean. National Weather Service (NWS). They can occur at any time of the year, but usually occur in the winter months from November to March.
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It is called Nor’easter because the strongest winds on the Mid-Atlantic tend to come from the northeast.Storms form during warm northbound Gulf Stream Atlantic currents interact with polar jet streams above it that carry Arctic air from Canada. And here is where the “explosive cyclogenesis” part of this weather appears. When a frigid jet stream collides with air warmed by the Gulf Stream, the temperature difference creates a low-pressure system that swirls into a cyclone. Temperature discrepancies not only activate storms, but also produce large amounts of moist heavy snow.
For extratropical cyclones, a drop in pressure in the center of the storm determines the strength of the storm, with lower pressures indicating stronger cyclone winds.
Not all cyclones develop into violent storms, but some storms experience what meteorologists call bombing. This is a rapid intensification of the storm caused by a sudden drop in air pressure. If the pressure drop is fast enough (24 millibars in 24 hours), a monster storm, often referred to as a “bomb cyclone” or in this case a “bomb cyclone”, can occur.According to a 2021 study published in Journal of Applied Meteorology and ClimatologyOf the average annual 270 extratropical cyclones from 1979 to 2019, an average of 18 cyclones per year met a standard called an explosive cyclone.
The cyclone, ready to hit the coast on Friday, is expected to experience a bomb depression sometime before landing. Storms are expected to cover the northeast with snow, but they can cause floods and power outages. According to the forecast, whiteout conditions and gusts of up to 60 mph (100 km / h) are expected. NWS Boston.. The impact can extend south to Carolina, which is expected to experience a breeze from a storm. Massachusetts and Rhode Island are expected to have the greatest impact (snow and wind). However, the more infamous it is, the more difficult it is to accurately predict where the storm will be most intense and how much snow will fall on a particular location.
Unlike their tropical relatives, who are often formed far away from the coast and strengthened over time, Nor’easter usually forms less than 100 miles (160 kilometers) from the coast. National Weather Service.. This means that meteorologists have less time to study the potential orbits of storms. This contributes to much of the uncertainty about where the center of the storm will land and how serious its impact will be.
Originally published on Live Science.
‘Bomb cyclone’ set to bring blizzards and hurricane-force winds to the Northeast on Friday: Here’s why. Source link ‘Bomb cyclone’ set to bring blizzards and hurricane-force winds to the Northeast on Friday: Here’s why.
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