Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.
The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...
As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...
The sudden blast may come as a shock to many Americans after a mostly mild start to winter, but that warmth may be partly ...
Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of such weather.
Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...
After this weekend's snow storm moves out, cold Arctic air will move in.
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