While much of the eastern U.S. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of unseasonable warmth, which has left many mountain ranges in a snow drought. A major ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

The tenth and coldest polar vortex of the season is blasting across the US this week. More than 58million Americans are under National Weather Service cold warnings from the US-Canada border to as far ...

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

Explore the dramatic weather patterns in the US, with the East experiencing extreme cold and the West enjoying unseasonal warmth, driven by a contorted polar vortex.

Folks in the central and eastern United States may be wondering: Is winter on the way out? Here's what meteorologists say.

Forecasters say the first snow storm of the season to take aim at major Northeast cities will dump several inches of snow over the weekend, followed by a bitter Arctic blast courtesy of the polar ...

COLUMBUS, Ohio — Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into central Ohio and much of the northern 2/3 of the United States and bringing teeth-chattering but ...