There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this ...

Across parts of the Northeast and New England, 14 million people remain under Winter alerts. A fast-moving storm wreaked ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar ...

The polar vortex is on the move and will take up a position near Hudson Bay, Canada, directing rounds of Arctic air southward ...

The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable ...

Frigid temps and heavy snow gripped much of the U.S. on December 1, the first day of meteorological winter. It looks like ...

A storm producing areas of snow over interior British Columbia at the start of the week is expected to move southeastward ...

Parts of the United States could see “extreme” cold as Earth’s most frigid temperatures could arrive during the holiday ...

Arctic air is sweeping the nation just in time for the start of winter, causing over 235 million Americans to experience ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

Arctic air is creating chilly conditions for millions of Americans out shopping on Black Friday, as another shot of even colder air from a disrupted Polar Vortex is expected to further plunge ...

The polar vortex, which is a band of strong winds that encloses a pool of freezing cold air in the Arctic, can cause extreme ...