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

Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex disruption is one of the largest meteorologists have seen in a long time. A polar vortex is a large area of low pressure ...

February 2022 was also characterized by an extremely strong stratospheric polar vortex—a large spinning mass of cold air in the stratosphere around 15 miles above the Arctic that is prominent ...