Severe Weather Alerts
Illinois
Flood Warning (Severe)
Alexander, IL
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Cape Girardeau affecting Alexander, Cape
Girardeau, Scott, Union, Jackson and Perry Counties.
Mississippi River at Thebes affecting Alexander and Scott
Counties.
For the Mississippi River...including Cape Girardeau, Thebes,
Hickman, New Madrid...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 12:00 PM CDT Wednesday the stage was 29.5 feet.
- Forecast...The river is expected to rise above flood stage
late Friday morning to a crest of 35.8 feet early Sunday
afternoon. It will then fall below flood stage Tuesday
evening.
- Flood stage is 33.0 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
4/29/2026 12:20 PMEnd Time
4/30/2026 2:30 PMGallatin, IL; Wabash, IL; White, IL
...The Flood Warning continues for the following rivers in Indiana...
Illinois...
Wabash River at New Harmony affecting Wabash, Gibson, Gallatin,
White and Posey Counties.
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 evening to Thursday, May 07.
* IMPACTS...At 15.0 feet, The river overflows low ground on the
Illinois side.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Wednesday the stage was 10.1 feet.
- Forecast...The river is expected to rise above flood stage
Friday evening to a crest of 15.9 feet Monday evening. It
will then fall below flood stage Thursday, May 07.
- 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
4/29/2026 10:44 AMEnd Time
4/30/2026 12:45 PMAlexander, IL; Jackson, IL; Union, IL
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Cape Girardeau affecting Alexander, Cape
Girardeau, Scott, Union, Jackson and Perry Counties.
Mississippi River at Thebes affecting Alexander and Scott
Counties.
For the Mississippi River...including Cape Girardeau, Thebes,
Hickman, New Madrid...Minor flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Cape Girardeau.
* WHEN...From late tonight to Wednesday, May 06.
* IMPACTS...At 36.0 feet, The flood gate on Themis Street closes.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Wednesday the stage was 30.6 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 36.5 feet Sunday morning. 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
4/29/2026 12:20 PMEnd Time
4/30/2026 2:30 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 Alton.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
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 at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 33.5 feet, Water Street in Chester begins flooding.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 28.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 28.0 feet.
- Forecast...The river is expected to rise to a crest of 34.0 feet
Saturday morning. It will then fall below flood stage late
Tuesday morning.
- Flood stage is 27.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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
Start Time
4/29/2026 11:54 AMEnd Time
5/1/2026 12:00 AMMissouri
Flood Warning (Severe)
Scott, MO
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Cape Girardeau affecting Alexander, Cape
Girardeau, Scott, Union, Jackson and Perry Counties.
Mississippi River at Thebes affecting Alexander and Scott
Counties.
For the Mississippi River...including Cape Girardeau, Thebes,
Hickman, New Madrid...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 12:00 PM CDT Wednesday the stage was 29.5 feet.
- Forecast...The river is expected to rise above flood stage
late Friday morning to a crest of 35.8 feet early Sunday
afternoon. It will then fall below flood stage Tuesday
evening.
- Flood stage is 33.0 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
4/29/2026 12:20 PMEnd Time
4/30/2026 2:30 PMCape Girardeau, MO; Perry, MO; Scott, MO
...The Flood Warning continues for the following rivers in
Missouri...Illinois...
Mississippi River at Cape Girardeau affecting Alexander, Cape
Girardeau, Scott, Union, Jackson and Perry Counties.
Mississippi River at Thebes affecting Alexander and Scott
Counties.
For the Mississippi River...including Cape Girardeau, Thebes,
Hickman, New Madrid...Minor flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Mississippi River at Cape Girardeau.
* WHEN...From late tonight to Wednesday, May 06.
* IMPACTS...At 36.0 feet, The flood gate on Themis Street closes.
* ADDITIONAL DETAILS...
- At 12:00 PM CDT Wednesday the stage was 30.6 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 36.5 feet Sunday morning. 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
4/29/2026 12:20 PMEnd Time
4/30/2026 2:30 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 Alton.
...The Flood Warning continues for the following rivers in
Illinois...Missouri...
Mississippi River at Chester.
Mississippi River near Herculaneum.
Mississippi River at St. Louis.
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 at Chester.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 33.5 feet, Water Street in Chester begins flooding.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 28.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 28.0 feet.
- Forecast...The river is expected to rise to a crest of 34.0 feet
Saturday morning. It will then fall below flood stage late
Tuesday morning.
- Flood stage is 27.0 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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