Dangerously cold temperatures were descending into the U.S. as far south as Texas on Tuesday, breaking records in some areas.

A storm has left entire sections in Kentucky inundated and killed at least 14 people, as communities brace for a snowstorm ...

Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 17 ...

The North Pole has unleashed "a large pool of Arctic air" that’s headed straight to the U.S., setting the stage for "record ...

In more than 100 locations, the cold could lead to record low temperatures, with a similar number of record cold high ...

Another arctic blast has sent temperatures plummeting across the United States, bringing “life-threatening” wind chills and dangerous cold to millions of Americans while yet another winter storm will ...

The term “polar vortex” usually refers to the gigantic circular upper-air weather pattern in the Arctic region.

WRAL meteorologist Chris Michaels explains what a polar vortex is and how it's impacting the United States. WRAL meteorologist Chris Michaels explains what a polar vortex is and how it's impacting the ...

A cold weather advisory is in effect until noon Tuesday, with wind chills ranging between minus 15 and minus 25 before ...

The latest winter storm is expected to affect the central Plains Tuesday before moving east into the Mid-Atlantic Wednesday, according to forecasters.

Extreme cold warnings were issued for an 11-state swath of the U.S. stretching from the Canadian border to Oklahoma and ...

Moderate to major winter storm impacts are forecast across a dozen states as the polar vortex fuels cold, snowy conditions.