The Flood Warning continues for the following rivers in Missouri. Illinois. Mississippi River at Chester. Mississippi River at Grafton. Mississippi River at Mel Price LD. Mississippi River near Herculaneum. Mississippi River at St. Louis. Mississippi River at Alton. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT. Minor flooding is occurring and minor flooding is forecast. * WHERE. Mississippi River at Grafton. * WHEN. Until late Monday morning. * IMPACTS. At 21.9 feet, In northern St. Charles County, Missouri Route B from Lehmond Island Road to Kampville Drive, Wilson Road at Washeon Road, and Grafton Ferry Road and Sherwood Harbor Road north of Smartt Field are closed. West of Portage des Sioux, Sioux Drive is also closed at this height. * ADDITIONAL DETAILS. - At 9:30 PM CDT Tuesday the stage was 20.2 feet and rising. - Recent Activity. The river first rose above flood stage this afternoon, April 30. - Forecast. The river is expected to rise to a crest of 22.0 feet Thursday evening. It will then fall below flood stage early Sunday morning. - Flood stage is 20.0 feet.
