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 ...

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

A polar vortex could bring the coldest January the U.S. has faced in years. National Weather Service experts told Newsweek that Americans can expect a colder-than-average start to the new year. So far ...

You’ve almost certainly heard of the polar vortex. But what about "sudden stratospheric warming," a weather term that’s started making the rounds on social media? They’re related to one another, and ...

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 ...