The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...
America is bracing for the coldest arctic blast of the season as a polar vortex is set to bring 'most severe' cold snap and ...
The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar vortex invasions ... This winter, with record snow in New Orleans ...
Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...