The polar vortex is a large upper-level, low-pressure area or circulation that typically resides above the Arctic Circle.

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

The region will see a sharp drop to sub-zero and single-digit temperatures as a dangerously cold Arctic front passes through.

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could ...

Some light snow is possible across much of New Jersey on Friday night after an Arctic blast of much frigid air could ...

As we head into the polar vortex, meteorologists are calling for up to a foot of snow in some parts of the U.S.

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...