As more Arctic air masses flow into the WOWK-TV region, you have undoubtedly heard the term “Polar Vortex” brought up in the conversation. But what is it? Definition: The polar vortex is a flow of wind aloft that is always present above the cold,

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip,

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip, making many roads treacherous,

Much of the United States has been buried in a deep freeze. And Kentucky faces the brunt of a polar vortex that continues to pour down through the middle of the country. Thankfully, Louisville Gas and Electric Company and Kentucky Utilities Company are ...

The United States continued to freeze through a polar vortex that brought rare cold to the southern United States and chances of freezing weather through much of the country.

In Kentucky’s biggest city ... It’s like an ice skating rink out there in the fields.” The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges ...

In Kentucky’s biggest city ... to scrape off his vehicle as an excuse to spend time in the snow. The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes escapes ...

Stable polar vortex: When the stratosphere over the Arctic is cold, it's considered stable. The wind around the polar vortex is tight, essentially hugging the cold air nice and tight.

A powerful winter storm hit the Deep South, bringing heavy snow, icy roads, school closures, and emergencies from Texas to the Carolinas.

A developing winter storm is threatening to drop snow, sleet and freezing rain on parts of Texas, Oklahoma and Arkansas