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

The cold temperatures are coming from a not uncommon expansion in the Polar Vortex, which are counter-clockwise rotating air ...

Scientists say a warming planet may have been responsible for a winter storm that dropped 10 inches of snow on Northwest ...

As they describe it, the polar vortex circles the north pole counterclockwise. the polar jet stream circles at a lower level ...

Unprecedented snowfall hits the U.S. South. Discover how this winter storm is setting new records and causing rare blizzard ...

As they describe it, the polar vortex circles the north pole counterclockwise. the polar jet stream circles at a lower level of the atmosphere, which usually keeps Arctic air corralled in the middle.

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

A lobe of the polar vortex, a stormy ring that typically keeps ... moist air of the Gulf of Mexico and the western Atlantic Ocean. After a slow start to the snow season in December, parts of ...

A powerful polar vortex is quickly making its way across ... continuing all the way to north Mexico before spreading all the way east to Florida and the Atlantic region by early next week.

The polar vortex set to hammer much of the country with ... temperatures are expected to drop in central areas of New Mexico — including Santa Fe and Albuquerque — leading to temperatures ...