...The National Weather Service in Chicago IL has issued a Flood Watch for the following rivers in Illinois... Illinois River at La Salle affecting Putnam, La Salle and Bureau zones. For the Illinois River (Upper)...including La Salle...flooding is possible. * WHAT...Flooding is possible. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...From Wednesday morning until further notice. * IMPACTS...At 20.0 feet, Agricultural areas in La Salle, Spring Valley, and Peru are inundated. * ADDITIONAL DETAILS... - At 9:45 PM CDT Tuesday the stage was 18.5 feet. - Forecast...Rainfall will cause the river to rise and flood stage may be reached by Thursday. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood