Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

The United States is currently experiencing an intense cold front linked to the so-called Arctic “polar vortex”.  The icy air ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation ... the ceremony will be held inside the United ...

Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...

WASHINGTON – A blast of Arctic air is set to cover much of the United States with temperatures ... date will be due to a phenomenon called a polar vortex, an upper-level jet stream that ...

Polar Vortex Set to Envelop Much of US in Freezing Temperatures By Hannah Lang and Brendan O'Brien (Reuters) - A blast of Arctic air is set to cover much of the United States with temperatures ...