The National Weather Service described the disaster as "a once-in-a-generation to once-in-a-lifetime" event, warning that the worst may still be ahead.

The rising water levels have prompted rescues and road closures. The storm, which has killed at least 16 people, doesn’t show ...

This story was updated to add new information. Meteorologists predict Friday will see the Midwest and mid-South continue to be hit by a devastating storm system that has unleashed tornadoes and ...