It has been a frigid week, all due to the polar vortex. You may have heard our Weather Authority mention the polar vortex several times, especially this week. The polar vortex is a large area of cold ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

These conditions are all thanks to a familiar sounding occurrence: the polar vortex, a large area of low pressure and cold ...

Learn more. The eastern U.S. is on track for a frigid week as a polar vortex stretches south, bringing below-normal temperatures to Maine. Starting Monday, much of the eastern two-thirds of the ...

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

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

Recent forecasts suggest some Americans might be getting a much-needed break from the freezing temperatures that have gripped ...

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.

Much of the U.S. is being blasted by ice, snow and wind, as the polar vortex that dipped south over the weekend is ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...