A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

Forecasted by weather experts to be significant, the polar vortex is poised to descend upon ... rain potentially affecting areas from southern Kansas and the Ozarks to the Tennessee Valley.

Kansas saw two deadly crashes over the weekend ... snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid ...

Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...

This will be the 10th time this winter that the polar vortex — which keeps the coldest ... tornadoes in parts of the Midwest and South Kansas, Nebraska, Missouri and Iowa will have ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

"The large polar vortex disruption from the second week of March is playing a key role in next week’s eastern US cold snap," meteorologist Judah Cohen of Atmospheric and Environmental Research told ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...

In the coming days, Americans are being warned to brace themselves for a period of extreme cold brought on by this year's polar vortex, Bloomberg Green reported. The vortex — which hit the U.S ...