A powerful polar vortex slams an already-frozen state as NOAA warns the deep freeze could last for weeks, bringing extreme ...

Temperatures dropped to near zero — with wind chills in the negatives — Thursday night into Friday morning as the chilly air set in behind an arctic cold front.

The term "polar vortex" gained notoriety back in 2014 due to extreme winter weather, but there's more to this phenomenon than just some low temperatures.

A Polar Vortex brought temperatures so cold in January 2014 that it froze Niagara Falls. Signals of a rare sudden stratospheric warming in the next two weeks have some forecasting an imminent 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 ...

The first of three rounds of cold Arctic air from a shifting polar vortex has sent temperatures plunging across the central and eastern U.S., threatening centuries-old record lows in cities and towns ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...

Boston has seen just one day so far this month where the average temperature was above the seasonal norm, daring me to ask — are you over the cold yet? Astronomical winter hasn’t even arrived (that ...