Polar Vortex collapse to bring back arctic blast into US; freezing temperatures, snowfall expected in These states

'Major disruption' has caused Arctic polar vortex to slide off North Pole, scientists say

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

Polar Vortex collapse to bring back arctic blast into US; freezing temperatures, snowfall expected in These states

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