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

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 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.

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 ...

Blizzard conditions are being reported in parts of Kansas and Missouri. In Indiana, the National Guard has been activated to help motorists.

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.

Snow and winds are likely to disrupt traffic, trigger flight cancellations, and cause headaches for people traveling to D.C. for Inauguration Day. Baby, it’s cold outside, and it’s about to get even colder for much of the United States.

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

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, with expected frigid conditions in the nation’s capital severe enough to force Donald Trump’s second inauguration indoors on Monday.

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After some early sun, clouds will return Saturday and temperatures will warm up, reaching into the mid-40s. Rain will move in during the afternoon and continue through the evening. Expect wet ...

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