Winter weather brings winter storm warnings, polar vortex from Texas to Maine
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.
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A polar vortex is set to grip much of the U.S. What does that mean?
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, a meteorologist says.
Polar vortex keeps a huge swath of the US in its icy grip
A major winter blast of snow, ice, wind and plunging temperatures in the U.S. stirred dangerous travel conditions from central and southern states all the way to the East Coast early Monday, prompting schools and government offices in several states to close.
Polar vortex keeps much of the U.S. in its icy grip
People in the U.S., Europe and Asia experience the polar vortex's intense cold when it escapes the North Pole and plunges southward.
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Polar vortex keeps much of country in icy grip
The polar vortex of ultra-cold air usually spins around ... a weather service meteorologist based in Gray, Maine. The cold was expected to grip the Eastern Seaboard as far south as Georgia ...
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Polar vortex keeps much of the US in its icy grip
The polar vortex of ultra-cold air usually spins around ... a weather service meteorologist based in Gray, Maine. The cold was expected to grip the Eastern Seaboard as far south as Georgia ...
Heavy snow and frigid Arctic blast put 70 million across the U.S. under winter storm warnings
A combination of frigid air with a low pressure system over the Gulf are behind the storm, which could bring heavy snow just south of the Interstate 20 corridor across northern Louisiana and into Mississippi and a mix of snow, sleet, and freezing rain near the Interstate 10 corridor from Houston to Mobile, Alabama.
Artists celebrate Maine's dark skies at Belfast exhibit
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Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
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.
Portland braces for several inches of snow followed by frigid cold
Winter weather is expected in Maine on Sunday, with several inches of snow set to be followed by frigid temperatures as the week goes on. Forecasters expect snow to accumulate Sunday afternoon into the evening.
Polar vortex to send bitter cold to the U.S. including DC area
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, keeping it locked there. If there's any weakening in the jet stream (the fence), the frigid air can become unstable and spill out. This sends the normally trapped cold air much farther south.