A strengthening storm system will lash rain-soaked parts of the Ohio and Tennessee valley, where some communities are still reeling from a series of deadly storms that inundated cities and rural areas alike.

As the rain let up, communities — seeing some of their worst floods in a century — began rescuing people, surveying damage and counting the dead.

Flood alerts remain in effect across Kentucky, Tennessee, Indiana, and Arkansas after days of devastating storms brought catastrophic rain and tornadoes to the central US. Major flooding is expected to continue through the week.