A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, a meteorologist says.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and ...

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.

MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

Major winter storm brings heavy snow to East Coast as Arctic blast puts millions under warnings from Plains to Maine

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend

A combination of frigid air with a low pressure system over the Gulf are behind the storm, which could bring heavy snow just south of the Interstate 20 corridor across northern Louisiana and into Mississippi and a mix of snow, sleet, and freezing rain near the Interstate 10 corridor from Houston to Mobile, Alabama.

Over 120 million Americans will face extreme cold, with temperatures potentially reaching minus 40 degrees Celsius. Meteorologists warn that it will be colder than in Greenland. Due to the frigid weather,

Dozens of US states will endure the lowest temperatures they have felt in years next week as a polar vortex brings 'life-threatening' cold. Here's how you can stay safe in these harsh conditions.

Pic: AP The winter storm is being driven by a polar vortex, usually located around the North Pole, which has dipped south and stretched from between the Rocky Mountains to Maine. Elsewhere ...

The polar vortex of ultra-cold air usually spins around ... a weather service meteorologist based in Gray, Maine. The cold was expected to grip the Eastern Seaboard as far south as Georgia ...