Cold temperatures are set to continue into the weekend, but New England will feel another icy blast of Arctic air Sunday ...

La Niña has a major influence on winter weather in the U.S., but its effects vary drastically by region. What will we see?

The planet's most extreme cold air will be barreling into the central and eastern United States this coming weekend "like a ...

A polar vortex is a mass of cold air that normally stays contained over the Arctic. The cold blast is predicted to be ...

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

Another brutally cold weekend is on the way as a piece of the Polar vortex dips out of the Arctic Circle, sending frigid air ...

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

A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

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 ...

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

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will temps ...