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An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia will arrive from Canada by week’s end, bringing with it dangerously ...
Cold subsides when the vortex restabilizes and drives the arctic air back north. January’s freeze-out comes after December started cold, but finished out unusually warm across most of the country.
Polar lows have been referred to by many other terms, such as polar mesoscale vortex, Arctic hurricane, Arctic low, and cold air depression. Today the term is usually reserved for the more vigorous systems that have near-surface winds of at least 17 m/s (38 mph).
A quick but intense blast of Arctic air will barrel into the Northeast later this week to deliver quite a cold shock to the Northeast and neighboring Canada, AccuWeather meteorologists warn. The ...
Although the cold air moderated, cold temperatures even reached Florida as far south as Tampa which had a low of 33 °F (1 °C) on January 7, 2014, 18 F below normal. [ 24 ] The period of December 2013–March 2014 around Illinois was the coldest four-month period on record, with average temperatures in Chicago and Rockford, Illinois around the ...
The Arctic dipole anomaly is a pressure pattern characterized by high pressure on the arctic regions of North America and low pressure on those of Eurasia. [1] This pattern sometimes replaces the Arctic oscillation and the North Atlantic oscillation . [ 2 ]
The polar vortex, which is a storm at the jet stream level of the atmosphere, has kept frigid air pent up above the Arctic Brief visit from polar vortex to bring record-challenging cold to ...
This was preceded by unusually warm weather in the eastern U.S. in December 1984, suggesting that there was a build-up of cold air that was suddenly released from the Arctic, a meteorological event known as a mobile polar high. Mount Mitchell, in North Carolina recorded an all time record low of −34 °F (−37 °C).