It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a ...

he term “polar vortex ... polar vortex event this season. Weather forces in the Arctic are combining to push the chilly air into the U.S. and Europe. With record snow in New Orleans last ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...