Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around the poles, making winter weather more chaotic.

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward, bringing the cold Arctic air to regions that don’t often experience it.

Frigid temperatures engulfed the South on Monday ahead of a winter storm that’s expected to spread heavy snow and disruptive ice around a region from Texas to north Florida that rarely sees

Major winter storm brings heavy snow to East Coast as Arctic blast puts millions under warnings from Plains to Maine

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and it’s as dramatic as it sounds. As many as 47 states will experience unseasonably cold temperatures. Some areas will be hit with dangerous wind chills as low as 40 below zero.

Wind chill values are expected to drop below 10 degrees, with some locations seeing wind chills closer to zero. Forecasters note a slight chance of snow flurries Saturday.

If someone asked you, “Where can I go in the United States to escape the frigid air this January?” what would you say?

Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles. Think of it as a barrier that, when strong, keeps icy polar air trapped up north.

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still digging out of the snowdrifts, but at least warmer temperatures are on tap heading into the weekend.

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

You also notice the end of the forecast indicates the polar vortex may be making another swipe at Michigan in mid-February. At that time of year it can still be a very cold outbreak. However it ...

Police officers, residents and volunteers from across the state plunged into cold waters Saturday afternoon in an effort to raise money for Special Olympics Oklahoma. This polar plunge took place ...