As you might have noticed, it was unusually cold last week. The animation above depicts the weather system’s bone-chilling journey across the country as the spinning expanse of Arctic air known as the ...

Polar vortex. It's a phrase that becomes very popular has achieved buzzword status and is often used frequently during the winter as the Northern Hemisphere endures its coldest months of the year, but ...

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 ...