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

If someone asked you, “Where can I go in the United States to escape the frigid air this January?” what would you say?

The jet stream is like a river of west-to-east winds in the upper atmosphere. Airplanes use it like a highway.

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as ...

BOSTON (AP) — Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low ...

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...

Tennessee, along with most of the lower 48 states, can expect a blast of cold air thanks to a polar vortex. The term has recently become popularized describe any blast of arctic air that gives us ...

Global News meteorologist Anthony Farnell said the chilly temperatures, caused by a polar vortex spinning across Canada, will “overwhelm” and will start this weekend and carry into next week.

These conditions are all thanks to a familiar sounding occurrence: the polar vortex, a large area of low pressure and cold air that surrounds the Earth's poles. The "vortex" is the counterclockwise ...

When this stratospheric vortex becomes disrupted or stretched, it can distort the jet stream as well, pushing it southward in some areas and causing cold air outbreaks. The Arctic polar vortex is ...

The temperature is predicted to be around 22 degrees during the swearing-in, the coldest since Ronald Reagan’s second inauguration.

We've already fallen as low as 1° this year. Another dip in the polar vortex makes that possible for Cincinnati again next week. We've already fallen as low as 1° this year. Another dip in the ...