A flock of birds on a bird feeder in winter snow - Nitr/Shutterstock Despite its apocalyptic-sounding name, a polar vortex is a fairly common occurrence. In fact, it exists year-round at both poles.

If you’ve ever wondered why winter sometimes flips from mild to brutally cold, the answer might be hiding 20 miles above your head. That’s where a rare atmospheric phenomenon called sudden ...

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 ...

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 ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming. Reading time 3 minutes Much of the contiguous U.S. could be in for a very ...

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 ...

CLOVIS, N.M. (KRQE) – Millions of state dollars are going to help families whose water supply has been contaminated by experiments at Cannon Air Force Base. About 100 water wells from rural homes near ...

This is read by an automated voice. Please report any issues or inconsistencies here. Georgian police used water cannons and pepper spray against protesters who attempted to storm the presidential ...

Police in Georgia used water cannons and pepper spray on Saturday to push back protesters who tried to storm the presidential palace, as the South Caucasus country held a municipal election boycotted ...

Filou had to decide which of the vortex rings was larger based only on the feeling as the water swirled across his whiskers, tapping one of two green balls on either side of his head to let the ...