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

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.

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption will stretch Arctic air across the top of the globe and make Donald Trump's second inauguration the coldest in 40 years,

A powerful polar ... from Alaska through the Midwest and extending deep into the Southeast. Many Southern states that rarely face winter storms are now under weather warnings as the vortex ...

The polar vortex of ultra-cold air usually spins ... displaced thousands and destroyed more than 12,000 structures […] ANCHORAGE, Alaska (AP) — Thousands of residents across Alaska’s largest ...

A comet not seen in the last 80,000 years is putting on a show over Alaska skies this week. Viewers are sending in amazing photos capturing the celestial event. A landslide in Ketchikan Sunday night forced the closure of a two-lane road on the outskirts of ...

Most of the country will likely be hit by an arctic blast this weekend into early next week as the polar vortex ushers in cold air from Siberia and multiple storms roll in and bring the potential ...

It looks like it could get even colder heading into next week. Within the last decade, the phrase 'polar vortex' has become popularized in the weather world. In fact, you may have heard it getting ...

As mentioned, the forthcoming polar vortex infiltration will be one of the most widespread Arctic air outbreaks in recent memory. A ridge into Alaska displaces the polar vortex southwards over ...

But during the winter, it is joined by a second atmospheric phenomenon dubbed the polar vortex. This swirl of frigid air, located more than 10 miles above Earth’s surface, strengthens each year ...

Snow is expected to taper off around Denver by the early afternoon, while temperatures will remain well-below freezing through Monday night.

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the Northern Plains and unusual snow and ice in the Gulf Coast area.