A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously frigid conditions.

A small temblor startled residents near Richmond this week. Over a decade ago, a 5.8 earthquake in Virginia became the most felt quake in the U.S.

Lawmakers were told to stay in the nation’s capital through the weekend, though many went home and are now at risk of having their flights delayed

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

A disruptive winter storm barreling across the country slammed the East Coast on Monday, causing chaos at airports over the weekend and canceling more than 1,000 flights to start the work week.

Another massive winter storm is forecast to pummel the southern and eastern U.S., with impacts from Texas to the Carolinas.

Flight cancellations and delays are stacking up as a major winter storm makes its way across the East ... out of the United States on Monday. Those flight cancellations hit the Washington, D.C ...

As a massive winter storm is rolling through regions of the United States on Monday, see pictures of snow from across the Midwest and East Coast.

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into next week, impacting millions of Americans in nearly all of the contiguous states.