This index, from NOAA's National Weather Service, attempts to scale the impacts from winter weather, taking into account ...

Severe thunderstorms are expected in the Ohio Valley and Southeast. You can track the threat for tornadoes, damaging winds and hail using our maps below. For the complete forecast and all of its ...

Much of the U.S. is bracing for more extreme winter weather over the next week. Jay Bonafede, communications director for the ...