The polar vortex is a large, whirling mass of cold air that usually extends across the Arctic. It becomes stronger in the winter, when the Northern Hemisphere leans away from the sun. Typically ...

(Photo by Jessica Rinaldi/Globe Staff) The country is in the clutches of the coldest air of the season with more than 40 states, including Massachusetts, seeing cold weather alerts at some point ...

Pontiac GTO Ram Air III landed online with an ambitious objective: a complete restoration to leave its worse days behind ...

If you're wondering how to keep your pet safe and healthy amid Minnesota's Arctic surge this week, experts urge following these tips. Being out in the severe cold can pose serious health risks to ...

It’s pretty cold, but … isn’t the climate warming? Yes. Although this blast of Arctic air sweeping the nation has thrown Bostonians scrounging through closets to find hats, gloves ...

NASHVILLE, Tenn. (WSMV) - A FIRST ALERT WEATHER DAY continues for today and tomorrow with bitterly and dangerously cold weather expected across the Midstate. We’ll have a good deal of sunshine ...

Actual air temperatures today staying mainly in the teens to low 20s, so another cold day with that wind making it feel much colder, even though the wind itself won't be as gusty or as strong.

For many counties, weather alerts, including Winter Storm Warning, Winter Weather Advisory and Cold Weather Advisory, were in effect Tuesday night into Wednesday morning. The daily snowfall record ...

Zack Wittman for The New York Times What happens when arctic cold air blasts the coldblooded alligators of the Florida swamps? They go underwater. As a rare Southeastern winter storm gripped the ...

The coldest of the arctic air is going to be in the next 24 to 36 hours,” van Oppen said. Temperatures Tuesday held steady in the teens — and more of that bitter cold can be expected Thursday.

This means the air at the poles gets extremely cold and dense, which causes a powerful jet stream to emerge in the stratosphere and blow the cold air from west to east. This strong circulation is ...