At least eight people were reported dead, including one child, after storms slammed into multiple states over the weekend.

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.

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

"The large polar vortex disruption from the second week of ... Judah Cohen of Atmospheric and Environmental Research told USA TODAY. Following a deadly and devastating week of weather across ...

Because there is typically a lag in how the near-surface atmosphere responds to the polar vortex, this would mean unusually cold temperatures affecting parts of North America and Eurasia at the ...

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 ...

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 ...

On March 9, the polar vortex wobbled and then snapped back the other way as mighty winds, suddenly shifting from the west to the east - something that typically happens once a year - usually in the ...

Reports suggesting that the polar bear at Chicago's Lincoln Park Zoo has been forced indoors due to the so-called polar vortex have ... it really is across the United States.

AccuWeather Long-range Expert Paul Pastelok said the shifting and stretching of the polar vortex could impact the United States around the middle of March with impacts potentially lingering into ...

A polar vortex collapse has been forecast to hit within weeks. The weather phenomenon will hit in mid-March and will affect the United States and Canada predominantly. It will be the second ...

The Polar Vortex's collapse will cause a major Arctic blast from central Canada into the Northeast United States, even if a progressive and dynamic weather pattern will persist across North ...