A cold front will bring plunging temperatures and snow to the Northeast this week. Polar vortex disruptions, caused by Sudden Stratospheric Warming, drive extreme cold southward. Officials advise ...

It's that time of the year! An extensive and prolonged Arctic outbreak is on the way to impact much of the United States. From the Rockies through the Northeast and Southeast, temperatures will plunge ...

CHICOPEE, Mass. (WWLP) – This winter could be average, unlike recent years, due to the influence of the polar vortex. The polar vortex, which is a persistent large-scale cyclone located near the North ...

At least nine deaths are now connected to the polar vortex that's spreading dangerously cold air and causing major disruptions across the Midwest and Northeast. Nearly 90 million people are in the ...

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 ...

Something unusual may be brewing in the stratosphere, and meteorologists say it could change the course of the winter forecast. The atmosphere is at a "critical juncture," and what happens in November ...

A rare weather event next week expected to spur a wave of unusually cold conditions throughout the country could make for a possibly frigid Thanksgiving for the region, forecasters said. The cold ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...

Arctic blast, polar vortex and Alberta clipper are all explained as Kaitlyn McGrath breaks down what makes winter weather so cold.