Winter hasn't even officially started, but parts of the country are already bracing for what could feel like the deep freeze ...

There are two of these polar vortexes -- one in the troposphere that affects weather every winter, and one in the ...

Feeling that sudden chill? A triple polar vortex is sweeping across parts of the U.S. Here’s what that means — and where it’s ...

The United States could be headed for some extreme weather this winter. That’s the early prediction from Severe Weather Europe, a website that tracks weather patterns around the globe. Three factors ...