The tropospheric polar vortex is a normal feature that influences weather across the globe every winter, while the ...

There are two of these polar vortexes -- one in the troposphere that affects weather every winter, and one in the ...

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid ...

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

According to meteorologists and climatologists, critical changes in two major atmospheric patterns—La Nina and the polar ...