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

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Similarly, wind chill temperatures measure how cold people and animals feel when outside, measuring the rate of heat loss ...

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 ...

What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

The United States is facing a storm unlike any seen in a long time. The National Weather Service has confirmed a blast of ...

It exists all the time, but it usually gets stronger in winter. When the jet stream (a river of wind) bends and dips south, ...

Winter has settled in for the long haul, and the next few days only reinforce that feeling. Tonight brings mostly cloudy ...

A snowstorm and harsh winter weather have impacted at least 177 million people across the US ...

A bitter blast of cold air settles over the D.C. region Tuesday as all eyes turn to a potential weekend winter storm that ...