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

While much of the eastern U.S. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of ...

After weeks of brutal cold and disruptive storms tied to the Polar Vortex, the atmosphere is finally pivoting. A new jet ...

This winter’s harsh run in the East is intensifying, with some of the coldest air so far this season plunging into Vermont ...

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

This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire.

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...

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.