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

It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

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

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

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

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

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

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 ... be held inside the United States Capitol Rotunda.

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the ...

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