Several states in the Northeast and Midwest will be hit by a winter storm as a polar vortex is set to drop temperatures nationwide.

The San Joaquin Valley and surrounding areas were expected to see temperatures lower than 32 degrees Thursday morning.

The National Weather Service has issued a winter weather warning for several areas in West Virginia for Friday afternoon. Advisories have been issued for the areas of Madison, Chapmanville ...

The National Weather Service in Phoenix shared this map of the areas under freeze warnings Friday through Sunday. The National Weather Service in Phoenix warned that south Gila County and ...

Metro Phoenix and large swaths of the desert areas of Arizona were under a freeze warning through Sunday, the National Weather Service in Phoenix warned on Friday. The weather service later issued ...