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

In other words, we can say- The extreme cold has been caused by a blast of Artic air, which in turn is a result of what is known as “Polar Vortex” event. These cold blasts of artic air are ...

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 ...