A polar vortex disturbance will drive a winter storm in Kentucky, with snow, frigid temps, and wind chills below zero ...

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

A snowstorm and harsh winter weather have impacted at least 177 million people across the US ...

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.

More snow is on the way for southern Ontario, with a widespread shot occurring on Wednesday. That will be followed by ...

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms ...

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...