How the polar vortex could deliver one last blast of wintry weather - The Washington Post
A disruption of the vortex could set off a chain reaction reversing the mild weather pattern in a few weeks.
How 'topsy turvy' polar vortex brought record freeze to Texas
How the polar vortex could deliver one last blast of wintry weather - The Washington Post
Polar vortex could unleash havoc on eastern US
Polar vortex could unleash winter wallop by January - The Washington Post
Polar Vortex forecast shows winter is 'heading for the exits'
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Winter weather forecast includes, snow, polar vortex and bomb cyclone
Polar vortex: 100 million Americans brace for next round of winter storm
The polar vortex has fractured, and the eastern U.S. faces a punishing stretch of winter weather - The Washington Post
How the polar vortex could deliver one last blast of wintry weather - The Washington Post
N.J. weather: What is the polar vortex, and could it boost our snow chances?
Arctic blast tied to polar vortex to test Texas grid again
The polar vortex is coming. Here's what that means — and how cold it could get. - The Washington Post
Extreme cold still happens in a warming world – in fact climate instability may be disrupting the polar vortex – Queen City News