A rare split polar Vortex will plunge millions of Americans into freezing temperatures as it's set to blast powerful cold air across the country around Valentine's Day. Forecasters have warned of ...

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 ...

The polar vortex is a part of Earth's atmosphere that is found over the North Pole. Strong winds typically keep the vortex locked in place, but periodically, changes in the weather can cause the ...