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.

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 ...

Throughout the day, blizzard conditions will hit the midwest as the storm system spreads east from the Ohio River Valley and reaches the mid-Atlantic by late Sunday or early Monday. The system will ...

The daily weather we experience is largely shaped by atmospheric conditions nearly 30,000 feet above us, where a key factor ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...