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

A 4.1 magnitude earthquake struck Alaska on Thursday afternoon. The United States Geological Survey (USGS) reported the quake ...

You've likely heard the term "polar vortex" virtually every winter since it first entered into popular culture during a bitterly cold January a decade ago. The polar vortex is a whirling cone of ...

The disruption could occur in February, bringing some of the coldest temperatures of the season at the end of winter.

A powerful polar ... from Alaska through the Midwest and extending deep into the Southeast. Many Southern states that rarely face winter storms are now under weather warnings as the vortex ...

Blizzard conditions are being reported in parts of Kansas and Missouri. In Indiana, the National Guard has been activated to ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes ventures south into the U.S., Europe and Asia. Some experts say such events are happening more frequently ...