Many types of winter weather alerts are in effect from an incoming spring storm in southern Colorado. Here's a primer on the differences between each of them.

winter storm watches and extreme cold and freeze warnings. A third storm, this one a low pressure system spinning in the cold Pacific, was forecast to propel subtropical precipitation from Hawaii ...

Spencer Platt/Getty Images As of early Tuesday morning, winter storm warnings were in place in Kansas, Iowa, Missouri, Kentucky, Virginia, Maryland, West Virginia, Delaware, New Jersey ...