A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

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

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

January has produced some amazing and unbelievable weather patterns across the U.S. The lower elevations of North Idaho continue to struggle for snow as only 8.4 inches have been measured at Cliff’s ...

The National Weather Service calls for more above-freezing temperatures Saturday, expected to be mostly sunny with a high ...

New Jersey should see temperatures rise this weekend after a week-long polar vortex called "the coldest week of the year" by ...

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still ...

An Arctic polar vortex has brought freezing temperatures and frigid winds to millions across the country this winter.

A strong polar vortex is expected to keep cold air in Canada and the northwest U.S. in February, March and April, according ...

"Weather connects people to each other and to places, and I hope we all saw a bit of magic and possibility in the world and ...