...The National Weather Service in Quad Cities IA IL has issued a Flood Watch for the following rivers in Illinois...Iowa... Mississippi River at Muscatine affecting Mercer, Louisa, Muscatine and Rock Island Counties. ...The Flood Watch is extended for the following rivers in Illinois...Iowa...Missouri... Mississippi River at Keithsburg affecting Mercer, Louisa, Des Moines and Henderson Counties. Mississippi River at New Boston LD17 affecting Mercer and Louisa Counties. Mississippi River at