When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...

A new snowmaking system is set to arrive as the weekend approaches. Cold air will grip the central and eastern US, sticking around after the season’s first widespread snow. Forecasters say the next ...

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 ...