The polar vortex of ultra-cold air usually spins around ... School closings were widespread Monday. Districts in Indiana, Virginia, Kentucky, Missouri and Kansas began announcing cancellations ...
The United States continued to freeze through a polar vortex that brought rare cold to the southern United States and chances ...
Millions in the U.S. were hit by a major winter storm that created dangerous conditions from the Central Plains to the East Coast.
A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast ...