Severe · Flood WarningActive alert
Flood Warning issued September 20 at 11:48AM CDT until September 27 at
Affecting Adams, IL; Lewis, MO
In effect until: Sep 22, 2026, 5:00 AM
Adams, IL; Lewis, MO
Likely impact across 2 counties in IL and MO; effects through 5:00 AM.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Read the original bulletin (official text)
...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at LaGrange. * WHEN...From Wednesday evening to late Saturday night. * IMPACTS...At 18.0 feet, The entrance to the lower parking lot at the Mark Twain Casino begins flooding near this height, requiring the use of an alternate entrance. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 8.6 feet. - Forecast...The river is expected to rise above flood stage Wednesday evening to a crest of 17.9 feet early Thursday afternoon. It will then fall below flood stage Friday evening. - Flood stage is 17.0 feet.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™