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 rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

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

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

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

allowing for the vortex to move more drastically, and potentially sending colder air into Asia, Europe, or the United States. As for if the polar vortex is to blame for last week's Gulf Coast ...

Elsewhere, a displaced lobe of the polar vortex has brought an unrelenting chill to large parts of the contiguous United States. About 30 states have experienced temperatures well below average ...

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

The United States has been experiencing severe ... to as low as -50C (-60F), is caused by the expansion of the polar vortex – an area of extremely cold, rotating air around the Arctic ...