A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip ...