Find out why Florida, Louisiana and other Souther states in the U.S. are experiencing a rare, historic snowstorm.

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

A major storm spread heavy snow, sleet and freezing rain across the southern United States on Wednesday, breaking snow ...

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

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 ...

Up to 280 million Americans will have a day or two where it’s colder than Anchorage ... with these stretches because when the polar vortex stretches, the flow starts in Siberia and ends in ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Nearly all of Michigan received an extreme cold warning yesterday. A surge of arctic air known as the polar vortex is the cause behind this abnormally cold weather. According to the National Weather ...

The polar vortex has shifted, spilling cold air across the U.S. with below freezing temperatures and subzero wind chills. The polar vortex is a ring of cold air that typically circles the Arctic.