A massive blast of bitterly cold air plunged temperatures across much of the United States on 6 and 7 January 2014 to life-threatening lows not seen in nearly two decade..!!!
# The phenomenon has been seen responsible for this historic and life-threatening cold wave across the U.S. is Polar Vortex...!!
# A polar vortex is a persistent, large scale cyclone located near one or both of Earth’s geographical poles....!!
# This polar vortex is named the 2014 North American polar vortex, which has resulted in extremely cold temperatures in parts of Canada and the U.S. ...!!!
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