Lake-effect snow is in the forecast for Michigan this week as a fast-moving clipper storm from the Rockies moves across the Plains into the Great Lakes.

Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. The planet's most extreme cold air will be barreling into the central and eastern United States ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...