Braving the polar vortex? Just another shift outside for some Long Island workers.
The sudden winter chill came thanks to the polar vortex, an area of low pressure and cold air in the Arctic near the North Pole, that has taken hold over parts of the country, meteorologists say.
WTEN2d
Polar vortex makes much of US colder than Greenland, but warmth is coming. Then more cold
The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic Greenland seem like a ...