A Winter Weather Advisory went into effect for the Philadelphia region at 11 p.m. on Wednesday. Drivers are advised to be careful as sleet and freezing rain continue throughout the morning commute, ...

A spinning fire vortex spotted on video Friday among the flames in a raging Pacific Palisades wildfire looks similar to a tornado, but scientists are still examining whether it was a rare fire ...

PDS warnings were first used to warn of tornado outbreaks in the Midwest. More than a decade ago, three meteorologists proposed expanding their use to disasters such as ice storms, floods ...