What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...