Twenty-six states are under wind-chill warnings or watches, and the polar vortex is to blame, breaking loose from its North Pole confines and plunging the country in a deep, dangerous freeze. The weather phenomenon is known as a "polar vortex".
At least 16 people are reported dead in the snowstorm that blasted across the northern tier this week. The bitter cold following in its wake is threatening to drive temperatures across the eastern half of the nation to all-time record lows.
Forecasters say the cold temperatures that are coming to much of the nation are rare -- maybe once a decade or more. But every once in a while, the icebox over the North Pole gets loose and this "polar vortex," as one meteorologist calls it, is...
At least eleven deaths in the United States are now blamed on a weekend storm that has left areas from the upper Midwest to northern New England covered with ice and without power -- possibly through Christmas.