A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

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

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

A polar vortex is expected to bring snow and ice to 26 states and D.C., threatening travel with blizzard conditions and ...

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

Forecasters predict another polar vortex disruption will stretch ... it will mean a day or two where it’s colder than Anchorage, Alaska. Monday's inauguration will see single-digit wind chills ...

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

Another polar vortex disruption will stretch Arctic air across the top of the globe and make Donald Trump's second inauguration the coldest in 40 years, meteorologists said.

Winter might be well underway, but a polar vortex is expected to impact much of the country including Texas, with forecasts predicting possible snowfall in the Lonestar State. With a potent cold ...