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.

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 ...

STATEN ISLAND, N.Y. -- As it pertains to Tuesday's weather, we on Staten Island know two things: (1) It's cold. Really, really cold... and (2) it has something to do with a polar vortex. But what, ...

The next step upward to spring weather is showing in the extended forecast. This week and much of next week look and feel ...