Weather authorities have highlighted "red zones" across the United States in preparation for the polar vortex moving in from the Arctic. The National Oceanic and Atmospheric Administration (NOAA ...

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the ...

There is a sudden warming about to happen high up in the atmosphere. This warming will affect the Polar Vortex. The Polar Vortex is a fast-spinning circular motion usually located about 50,000 ...