How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the polar regions—here’s how it works

Parts of Mississippi can expect freezing temperatures, lows in the teens in the coming week. Know how to prep your home, family, pets for the cold.

The colder-than-normal temperatures in Houston are part of a larger pattern of Arctic air sweeping through Texas and much of the southern United States.

Another blast of Arctic air is heading into Northeast this weekend, bringing coldest temps of season so far coupled with dangerously cold wind chills

Lows Tuesday morning were in the 20s and lows Wednesday are expected to be in the 30s, an improvement but it's still cold. North Texas should see highs rebound into the 60s on Thursday and Friday, but it's short-lived.

North Texas will enjoy a mild Thursday with highs near 59 degrees, but brace for a major chill with possible snow as an Arctic cold front arrives Friday night.

A new USA TODAY/Suffolk University found a little more than half of Americans don't support Donald Trump's proposal to acquire Greenland.

President-elect Trump's talk of Canada as a "51st state" and annexing Greenland registered among national-security crowds as an "Oh, boy!" moment. Obnoxious, enticing, familiar. Why it matters: The darlings of Trump's current foreign policy fixation boast Arctic utility at a time when the icy region is heating up.