...The Flood Warning is extended for the following rivers in Illinois... Illinois River at La Salle affecting La Salle, Bureau and Putnam Counties. For the Illinois River (Upper)...including La Salle...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until Tuesday afternoon. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 21.9 feet. - Forecast...The river is cresting near 22 feet tonight, then will begin a slow fall. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood