A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.
NPR's Leila Fadel speaks with Axios senior climate reporter Andrew Freedman about the incoming Arctic blast that's expected to bring dangerously cold temperatures to large parts of the U.S.
It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polarvortex. But what exactly is it and how does it impact our weather? The polarvortex is ...