A crippling winter storm that could paralyze parts of the Southern and Central U.S. this weekend, and some of the effects ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee.

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of ...

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

Montrealers awoke Saturday to the first wave of frosty temperatures expected to last into the coming week. Despite the ...

The polar vortex is unleashing an extreme cold wave across the United States, bringing a historic arctic blast, violent ...

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

Another polar vortex is expected to bring subzero temperatures that will affect more than 40 million Americans in the coming ...

The bitter cold temperatures that are descending across the northern tier of the United States are caused by a break in the polar vortex. The polar vortex "is a large area of low pressure and cold air ...

CTV meteorologist Kalin Mitchell has snow reports for what has been a slick day on the roads for parts of the Maritimes. A ...

The term "polar vortex" has gained popularity in recent years, but the phenomenon itself is not new. According to the U.S. National Weather Service, the polar vortex refers to the counterclockwise ...

About 230 million people will face temperatures of 20 degrees or colder and about 150 million likely will be hit by snow and ...