The U.S. Army Corps of Engineers at Wappapello Lake reports significant rains received in the St. Francis watershed north of Wappapello Lake have caused the upper St. Francis River and Wappapello Lake to rise. As of 10 a.m. on Sunday, April 30, 2017, the Wappapello Lake level was 382.52 feet relative to the National Geodetic Vertical Datum (NGVD) and rising.