The stratospheric polar vortex is entering its seasonal collapse. But that doesn’t mean calm weather is coming. What's ...

Earth in Action, by Esri's Maps.com, brings planetary data to life, depicting the rise and fall of temperatures and the ...

Track everything from current conditions, forecasts and potential impacts from the severe weather outbreak here.

The storms will bring snow, ice and hazardous travel conditions to the Rockies, Upper Midwest and Northeast this week.

The latest weather maps show mercury misery for much of the country in the days to come, with temperatures dipping as low as ...