Polar vortex leaves more than 30 states on alert for dangerously cold weather
A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.
Map Shows Coldest Places in US as Polar Vortex Descends
According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...