The polar vortex is coming: Brutal Arctic cold waves heading for U.S.

[NelsonG]

The weather pattern across North America and into the Arctic is volatile and bizarre for this time of year, with unusually mild conditions continuing to surge into the Arctic while frigid air is being pulled south. 

It's as if someone opened the door to the refrigerator that is the North Pole and let all the cold air drain away. For the Arctic, this means record-low sea ice and all-time high air temperature records. 

But for a huge swath of more populated land, from Alberta to Quebec in Canada, and the Pacific Northwest to the Northeast in the U.S., a polar vortex-linked series of frigid blasts await.  Read more...

More about Science, Extreme Weather, Winter, Snow, and Arctic Outbreak

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