This is a catastrophic, potentially historic heavy rainfall and flash flood event,” the National Weather Service warned.

As communities in the central US grapple with widespread devastation from a line of deadly storms that spawned dozens of tornadoes this week, forecasters are warning of another grave threat to the region: relentless rain into the weekend,

Several states in the central U.S. were hit hard overnight by a deadly storm that reportedly caused flash flooding and even destructive tornadoes.