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

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills between negative 10 to negative 25 degrees will be expected, and the cold ...

This cold blast could be relatively short-lived, with a return to more typical wintry temperatures by later in December.

Cold temperatures are set to continue on Monday, but New England will feel another icy blast of Arctic air linked once again ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they ...

The United States is expecting another hit by the polar vortex starting this weekend. Here's what's expected in South ...

A polar vortex is a large, low-pressure system of cold air that typically resides near the Earth’s poles, surrounded by ...

Thanksgiving is less than a week away which means the fall season is ending. With it comes colder temperatures from an expected polar vortex.

A Polar Vortex brought temperatures so cold in January 2014 that it froze Niagara Falls. Signals of a rare sudden stratospheric warming in the next two weeks have some forecasting an imminent Arctic ...

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward into ...

The knots in your shoelaces are familiar, but can you imagine knots made from light, water, or from the structured fluids ...