Headline:
Flood Warning issued April 30 at 1:03PM CDT until May 3 at 6:00PM CDT by NWS St Louis MO
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 30, 2026 - 11:03am
Expires:
May 1, 2026 - 11:15pm
Description:
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at St. Louis.
Mississippi River near Herculaneum.
Mississippi River at Chester.
...The Flood Warning is extended for the following rivers in
Missouri...Illinois...
Mississippi River at Alton.
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
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 near Herculaneum.
* WHEN...Until Sunday evening.
* IMPACTS...At 28.3 feet, Near this height, the walking trail
(extension of Station Road) at Bates Memorial Park begins flooding.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Thursday the stage was 26.5 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 12:00 PM CDT Thursday was 26.5 feet.
- Forecast...The river is expected to rise to a crest of 27.3 feet
early tomorrow afternoon. It will then fall below flood stage
late Saturday morning.
- Flood stage is 26.0 feet.
Instruction:
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:
Monroe, IL; Jefferson, MO
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov