Multiple states were expected to see snow on Tuesday, while widespread freeze warnings spanned the southern U.S.

A harsh drop in temperatures is being delivered to the eastern two thirds of the U.S. thanks to a polar vortex dipping down ...

In terms of precipitation, Washington, Oregon and parts of Idaho and Montana are most likely to see above-average levels from ...

More than a dozen states could see snow on Christmas, according to forecast trends analyzed by the Old Farmer's Almanac.