The intense cold snap about to settle over most of Canada and the U.S. has been dubbed a “polar vortex’, but Environment ...

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.

One of the most notable and widespread Arctic outbreaks that we have seen across North America since 2014 is on the way. An Arctic air mass from Siberia will plunge south across the Prairies and ...

January has already been colder than average in most states east of the Rocky Mountains for the first time in two years - and now, more frigid air is coming. A lobe of the polar vortex, a stormy ...

Another blast of Arctic air is set to sweep across the South early next week, following a system that will bring rain and snow to many parts of the U.S. The National Weather Service is calling for ...