Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex will engulf much of North America as we head into next week, with temperatures dipping down into the -20s and ...

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

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 ...

Welcome to 'false spring,' New Jersey! A polar vortex split could bring bitter cold back to NJ, but how cold will it get and when? The latest forecast ...