Flood Warning

Locations Affected

Portage Des Sioux, MO ∙ St Charles County Airport, MO ∙ Orchard Farm, MO ∙ Elsah, IL ∙ South Shore, MO ∙ Grafton, IL

Headline

...The Flood Warning is extended for the following river in Missouri and Illinois...
Mississippi River at Grafton.
Mississippi River at Canton.
Mississippi River at Saverton.
Mississippi River at Winfield.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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
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Full Alert Message

Flood Statement National Weather Service St Louis MO 1109 AM CDT Sun Apr 26 2026 ...The Flood Warning is extended for the following river in Missouri and Illinois... Mississippi River at Grafton. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 && ...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY AFTERNOON... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Grafton. * WHEN...Until Friday afternoon. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 20.4 feet. - Forecast...The river is expected to rise to a crest of 20.4 feet this afternoon. - Flood stage is 20.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Mon Tue Wed Thu Fri Mississippi River Grafton 20.0 20.4 20.4 20.3 20.1 20.0 19.8 && LAT...LON 3880 9057 3888 9057 3897 9055 3898 9042 3895 9028 3891 9033

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