A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia ...
A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...
Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...
Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.
An Arctic blast that began in the northern plains on Saturday spread bitter cold from the Rockies through the East Coast and ...
The polar vortex is like a giant ... though La Nina does produce more big disruptions than other years. That cold arctic blast can last anywhere from a few days to a few weeks.
Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...
A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the ...