Polar vortex WIKIPEDIA
Polar vortex From Wikipedia, the free encyclopedia Jump to: navigation, search Polar vortex over Quebec and Maine on the morning of January 21, 1985 A polar vortex (also known as a polar cyclone, polar low, frigid twister, or a circumpolar whirl[1] ) is a persistent, large-scale cyclone located near either of a planet’s geographical poles. Continue Reading →