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 significant meteorological event is poised to impact vast regions of the United States. The polar vortex, a large area of low pressure and cold air surrounding the Earth’s poles, is expected to ...

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

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

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

Cold air from the arctic sometimes dips southward across the American plains. What to know about the polar vortex.

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 ...

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 ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

Winter is making its presence known in New York City, as the polar vortex is bringing brutally cold temperatures to the ...