A disrupted polar vortex will unleash a series of bone-chilling Arctic outbreaks across the eastern United States this month.

After a brief lull that tempted some to declare the season finished, forecasters are warning that the atmosphere has other ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

A powerful winter storm, influenced by a polar vortex, is impacting much of the U.S., bringing heavy snow, ice, and extreme ...

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast.

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

The worst of the sleet and ice should be over by Tuesday, but you can expect cold temperatures to hang around for the next ...

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

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

A collapse in the polar vortex is letting Artic air come here. What that means, and why it happens.

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast. Here's the forecast.