Add Yahoo as a preferred source to see more of our stories on Google. You have probably heard the term polar vortex before, but what exactly is it, and how did it contribute to the freezing ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not ...

And that's not totally untrue. NOAA found that the polar vortex as was actually quite strong in recent weeks and only underwent a slight weakening. That slight weakening is not enough evidence to ...

Less than a week after snow, sleet and freezing rain, we're now forecasting highs in the 70s. During its coldest point, last week saw wind chills drop to -30° to -50° in states like Iowa, Wisconsin, ...