Preparations are underway as an arctic blast dives into the nation's interior and southern regions and pushes a snowstorm into the Mid-Atlantic and Northeast that will be followed by lethal cold.

Dangerously cold weather spread over the Midwest on Saturday and is headed toward the East Coast, where temperatures well below seasonal norms are expected starting late Sunday and into next week.

Temperatures will plummet as Arctic outbreak brings frigid weather to much of the U.S. Much of the United States will see temperatures plummet 20 to 40 degrees below average when a major Arctic outbreak bringing frigid temperatures sweeps through the country.

Many Greenlanders were relocated by Danish colonists and construction of a US base. Global powers are again eyeing the island

Extreme cold could expose residents of several states to conditions like hypothermia and frostbite over the weekend.

The Arctic is heating up particularly fast as a result of global warming—with serious consequences. The widespread permafrost in this region, where soils currently store twice as much carbon as the atmosphere,

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.

It will be the coldest Inauguration Day since former President Ronald Reagan’s second inauguration in 1985, when the noon temperature was 7 degrees.

Millions are bracing for subzero wind chills this weekend as the coldest air of the season hits most of the country. The Arctic blast will bring snow squalls to several states, and seven other states are expecting heavy snow ahead of the plunging temperatures.

With the Arctic freeze on its way to Colorado and expected to last for several days, it's important to keep your pets well-protected during this deep freeze.

Permafrost thaw poses multiple risks to local Arctic communities, their livelihoods, infrastructure and environment. A transdisciplinary study led by Umeå University and others has identified key risks across four Arctic regions.

Several Florida counties could see "show showers" next week as another an Arctic blast combines with moisture to make snow a possibility.