See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A polar vortex could bring the coldest January the U.S. has faced in ...

Add Yahoo as a preferred source to see more of our stories on Google. Get ready for some much colder weather. Forecasters are calling for a return of the polar vortex in the coming days and weeks.

The polar vortex has been absent from the United States for most of winter thus far, which led to a very warm January. The Eastern Seaboard through the central and southern Plains recorded ...

If you’re among the Canadians hoping for a white Christmas this year, there’s good news and bad news. The good news is that some forecast models point to conditions favourable for snowfall. The bad ...

In 2014, the term “polar vortex” burst on the scene across Canada and the U.S. as temperatures plunged. In some places, it was colder than it was on Mars. Well, get ready to hear more about it.