NORFOLK: The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., ...

Schools in several states will remain closed on Wednesday after a winter storm brought over a foot of snow in some areas.

Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit.

Winters are getting warmer across New England, that we know. So when we do get a frigid blast of subfreezing weather like ...

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

Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it?

The polar vortex has triggered freeze warnings and advisories across Texas, threatening human safety and infrastructure.

Parts of all states in the lower 48 woke up to subfreezing temperatures Tuesday due to a weather pattern that will keep ...