When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

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 ...

It seems like you cannot mention cold weather in the fall and winter without coming across the phrase “polar vortex.” Meteorologists often refer to this weather element as a potential culprit behind ...