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.

Believe it or not, global warming might have caused the arctic blast

The polar vortex, briefly explained - Vox

Welcome to the Polar Vortex Blog!

Polar vortex coming in November: Arctic blast to central, eastern U.S.

Welcome to the Polar Vortex Blog!

An arctic blast could snowball into a bomb cyclone. Here's what that means

Explaining what the polar vortex is and how it impacts you during the winter

The polar vortex is coming—and raising the odds for intense winter weather

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