...The Flood Warning is extended for the following rivers in Illinois... Mackinaw River near Congerville affecting Woodford, McLean and Tazewell Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mackinaw River near Congerville. * WHEN...Until late tomorrow morning. * IMPACTS...At 13.0 feet, Widespread agricultural flooding occurs. * ADDITIONAL DETAILS... - At 5:45 AM CDT Saturday the stage was 14.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:45 AM CDT Saturday was 14.1 feet. - Forecast...The river is expected to rise to a crest of 14.5 feet this evening. It will then fall below flood stage late tonight. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood