‘Once in a lifetime’ snow hits parts of the U.S. South
A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven’t seen before. Moisture from the Gulf of Mexico was combining with a ...
A powerful Polar Vortex in the stratosphere brings frigid temperatures to US
The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...