By BRENT MARTIN

St. Joseph Post

Kansas Dept. of Agriculture photo

A dam south of Sabetha, Kansas is expected to fail this afternoon, sending floodwaters downstream on the Delaware River.

The National Weather Service in Topeka has issued a flash flood warning for southwestern Brown County, east-central Nemaha County, and northeastern Jackson County.

At 2:30 this afternoon, emergency management officials reported the failure of the dam a mile south of Sabehta was imminent.

(Read more: Junction City Post)