Don’t pack away the winter coat just yet. A polar vortex split could bring one last stretch of cold to the D.C. region before the end of March.

New Yorkers should prepare for one last noticeable chill from the polar vortex before spring takes hold, with below-average temperatures expected March 24-30.

Don’t pack away the winter coat just yet. A polar vortex split could bring one last stretch of cold to the Philadelphia region before the end of March.

And the dreaded polar vortex will again invade the Midwest and East with soul-crushing Arctic chill. This forecast of ...

Around the same time as the heat starts blasting Phoenix, the polar vortex — a system that usually keeps frigid air penned up ...

As we approach the end of March, many people may be getting ready for shorts season, but a split in the Polar Vortex could ...