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.

Polar vortex: 100 million Americans brace for next round of winter storm

Making sense of the polar vortex and record cold on a feverish planet - The Washington Post

New Orleans Northshore Southshore winter weather hard freeze

Polar vortex split: Winter weather coming to eastern, central US

The polar vortex has fractured, and the eastern US faces a punishing winter - The Boston Globe

Arctic blast bringing temperatures of -50F - 78 degrees below normal - is forecast to strike West and Midwest next week

Colorado weather: Bomb cyclone, polar vortex on the way

Polar vortex expert says another arctic blast has a 'good chance' of happeneing in February

Welcome to the Polar Vortex Blog!

How climate change is easing extreme cold snaps - The Washington Post

How 'topsy turvy' polar vortex brought record freeze to Texas