Illinois, Missouri Severe Flood Warning | Effective 06/16/2026 20:10

Headline: 
Flood Warning issued June 16 at 10:10PM CDT until June 21 at 6:08AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 16, 2026 - 8:10pm
Expires: 
June 18, 2026 - 8:15am
Description: 
...The Flood Warning continues for the following rivers in Missouri...Illinois... Missouri River at St. Charles. Mississippi River at Chester. Mississippi River at Clarksville. Mississippi River at Mel Price LD. Meramec River near Arnold. Illinois River at Hardin. Mississippi River at Louisiana. ...The Flood Warning is extended for the following rivers in Missouri...Illinois... Missouri River at Hermann. Missouri River near Chamois. Illinois River at Valley City. 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 Chester. * WHEN...Until Sunday morning. * IMPACTS...At 28.0 feet, Unleveed islands near Chester and the prison farm floods. * ADDITIONAL DETAILS... - At 10:00 PM CDT Tuesday the stage was 28.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 PM CDT Tuesday was 28.1 feet. - Forecast...The river is expected to rise to a crest of 28.8 feet early Thursday afternoon. It will then fall below flood stage early Saturday morning. - Flood stage is 27.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Jackson, IL; Randolph, IL; Perry, MO; Ste. Genevieve, MO
Forcast Office: 
NWS St Louis MO