A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...

The polar vortex is a large area of arctic air that sits and spins across the North Pole. A strong jet stream will keep it ...

This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in ...

BOSTON (AP) — The northeastern U.S. is about to get a cold spring farewell from winter’s bad boy, the polar vortex, which could bring rare May snowfall and record-low temperatures to some areas over ...

The phenomenon, known as a sudden stratospheric warming, it's "the largest type of disruption that occurs to the polar vortex ...

The polar vortex is an area of low pressure, a wide expanse of swirling cold air that is parked in polar regions, according ...