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 ...
More extremely cold temperatures and wind chills are still to come. Another wave of snow comes late Sunday.
Snow is expected to taper off around Denver by the early afternoon, while temperatures will remain well-below freezing ...
However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to ...
A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.