Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Grafton. ...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Chester. Mississippi River near Herculaneum. Mississippi River at Mel Price LD. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring. * WHERE...Mississippi River at Grafton. * WHEN...Until early Saturday morning. * IMPACTS...At 21.0 feet, Water begins flooding the floor at the Palisades Marina in Portage Des Sioux. Access to homes along North Shore Drive in eastern St. Charles County becomes cut off near this height. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 20.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Thursday was 20.7 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 16.8 feet Wednesday evening. - Flood stage is 20.0 feet.