Severe Weather Alerts
Illinois
Flood Warning (Severe)
Alexander, IL
...The National Weather Service in Paducah KY has issued a Flood
Warning for the following rivers in Illinois...Missouri...
Mississippi River at Thebes
.Runoff from recent heavy rain upstream will cause minor flooding to
develop along the Mississippi River at Thebes. The river is
forecast to rise above flood stage Friday morning and crest near
35.8 feet on Monday.
For the Mississippi River...including Thebes...Minor flooding is
forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Thebes.
* WHEN...From Friday morning to Wednesday, May 06.
* IMPACTS...At 34.0 feet, The town of Thebes begins to flood.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 28.0 feet.
- Forecast...The river is expected to rise above flood stage
late Friday morning to a crest of 35.8 feet Monday morning.
It will then fall below flood stage Wednesday, May 06.
- Flood stage is 33.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
Start Time
4/28/2026 11:52 AMEnd Time
4/29/2026 2:00 PMGallatin, IL; Wabash, IL; White, IL
...The National Weather Service in Paducah KY has issued a Flood
Warning for the following rivers in Illinois...Indiana...
Wabash River at New Harmony
For the Wabash River...including New Harmony...Minor flooding is
forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Wabash River at New Harmony.
* WHEN...From Friday morning until further notice.
* IMPACTS...At 19.0 feet, Harmonie State Park is closed. Surrounding
bottomland is flooded.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Tuesday the stage was 5.6 feet.
- Forecast...The river is expected to rise above flood stage
late Friday morning and continue rising to a crest of 17.2
feet Tuesday, May 05.
- Flood stage is 15.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
Start Time
4/28/2026 11:26 AMEnd Time
4/29/2026 1:30 PMAlexander, IL; Jackson, IL; Union, IL
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Cape Girardeau
.Runoff from recent heavy rain upstream will cause minor flooding to
develop along the Mississippi River at Cape Girardeau. The river is
forecast to rise above flood stage Thursday morning and crest near
36.5 feet on Sunday.
For the Mississippi River...including Cape Girardeau...Minor
flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Cape Girardeau.
* WHEN...From Thursday morning to Wednesday, May 06.
* IMPACTS...At 36.0 feet, The flood gate on Themis Street closes.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 29.2 feet.
- Forecast...The river is expected to rise above flood stage
late Thursday morning to a crest of 36.5 feet Sunday evening.
It will then fall below flood stage Wednesday, May 06.
- Flood stage is 32.0 feet.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
Start Time
4/28/2026 11:49 AMEnd Time
4/29/2026 2:00 PMJackson, IL; Randolph, IL
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
Mississippi River at Canton.
Mississippi River at Winfield.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
Mississippi River at Alton.
Mississippi River at Saverton.
...The Flood Warning is cancelled for the following rivers in
Illinois...Missouri...
Mississippi River at Quincy.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday, May 06.
* IMPACTS...At 34.7 feet, The north parking lot at Menard
Correctional Center begins flooding.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 26.6 feet.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 34.4 feet Saturday morning.
It will then fall below flood stage Tuesday, May 05.
- Flood stage is 27.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
Start Time
4/28/2026 10:02 PMEnd Time
4/30/2026 10:15 AMMissouri
Flood Warning (Severe)
Scott, MO
...The National Weather Service in Paducah KY has issued a Flood
Warning for the following rivers in Illinois...Missouri...
Mississippi River at Thebes
.Runoff from recent heavy rain upstream will cause minor flooding to
develop along the Mississippi River at Thebes. The river is
forecast to rise above flood stage Friday morning and crest near
35.8 feet on Monday.
For the Mississippi River...including Thebes...Minor flooding is
forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Thebes.
* WHEN...From Friday morning to Wednesday, May 06.
* IMPACTS...At 34.0 feet, The town of Thebes begins to flood.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 28.0 feet.
- Forecast...The river is expected to rise above flood stage
late Friday morning to a crest of 35.8 feet Monday morning.
It will then fall below flood stage Wednesday, May 06.
- Flood stage is 33.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
Start Time
4/28/2026 11:52 AMEnd Time
4/29/2026 2:00 PMCape Girardeau, MO; Perry, MO; Scott, MO
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Cape Girardeau
.Runoff from recent heavy rain upstream will cause minor flooding to
develop along the Mississippi River at Cape Girardeau. The river is
forecast to rise above flood stage Thursday morning and crest near
36.5 feet on Sunday.
For the Mississippi River...including Cape Girardeau...Minor
flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Cape Girardeau.
* WHEN...From Thursday morning to Wednesday, May 06.
* IMPACTS...At 36.0 feet, The flood gate on Themis Street closes.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 29.2 feet.
- Forecast...The river is expected to rise above flood stage
late Thursday morning to a crest of 36.5 feet Sunday evening.
It will then fall below flood stage Wednesday, May 06.
- Flood stage is 32.0 feet.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
Start Time
4/28/2026 11:49 AMEnd Time
4/29/2026 2:00 PMPerry, MO; Ste. Genevieve, MO
...The Flood Warning is extended for the following rivers in
Illinois...Missouri...
Mississippi River at Mel Price LD.
Mississippi River at Grafton.
Mississippi River at Canton.
Mississippi River at Winfield.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River at Hannibal.
Mississippi River at Clarksville.
Mississippi River at Louisiana.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
Mississippi River at Alton.
Mississippi River at Saverton.
...The Flood Warning is cancelled for the following rivers in
Illinois...Missouri...
Mississippi River at Quincy.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Chester.
* WHEN...Until Wednesday, May 06.
* IMPACTS...At 34.7 feet, The north parking lot at Menard
Correctional Center begins flooding.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 26.6 feet.
- Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 34.4 feet Saturday morning.
It will then fall below flood stage Tuesday, May 05.
- Flood stage is 27.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx