The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm ...

According to a National Weather Service map, visualized by Newsweek below, 17 counties are under freeze warnings in Florida, ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to blame for ...

The polar vortex has plunged much of the US into freezing conditions, causing widespread chaos. Heavy snow, ice, and wind led ...

The immense storm system brought disruption to areas of the country that usually escape winter’s wrath, downing trees in some Southern states, threatening a freeze in Florida.

A huge swath of the United States was blasted with ice, snow, and wind on Monday as the polar vortex that dipped south over ...

Storm Blair is spreading across the U.S., prompting thousands of flight delays and cancellations. Here's what to know.

Millions in the U.S. were hit by a major winter storm that created dangerous conditions from the Central Plains to the East Coast.

A blast of snow, ice, wind and plunging temperatures stirred up dangerous travel conditions in parts of the central U.S. on ...

The disruptive winter storm brings the possibility of the “heaviest snowfall in a decade” to some areas Monday.