Cold air from the arctic sometimes dips southward across the American plains. What to know about the polar vortex.

The storm has disrupted travel, bringing heavy snow, ice and wind to the eastern two-thirds of the US. Hundreds of flights ...

As a coast-to-coast winter storm slices across the U.S. Sunday and Monday, severe thunderstorms fired up across portions of ...

This winter storm is expected to make road travel particularly dangerous, bringing heavy snowfall and ice to several states.

See the latest weather, road conditions and more in Lexington and across Central Kentucky. More snow on the way with a deep freeze right behind it.

A state of emergency has been declared in five states, with the storm set to bring the coldest temperatures in over a decade.

When severe weather hits western Washington, where you live can make a big difference in the impact to you and your family.

Despite recent rounds of winter rain and powerful waves that pummeled the coastline, most of California is continuing to bake ...

Some 70 million people are under weather alerts on Sunday as a winter storm bringing snow, ice and rain barrels across the US ...