Alert archive / Illinois / River Flood Warnings in 2024

River Flood Warning 67, NWS St. Louis, MO

May 8, 2024Monroe County, Illinois; Jefferson County, Missouri

NWS St. Louis, MO issued this river flood warning at May 8, 2024, 10:05 PM CDT for Monroe County, Illinois; Jefferson County, Missouri. It took effect at May 10, 2024, 8:30 AM CDT. It was in force for 46 hr.

The area

The outline as issued.

The facts

Issued: May 8, 2024, 10:05 PM CDT (03:05 UTC)
In effect from: May 10, 2024, 8:30 AM CDT
Expired: May 12, 2024, 6:50 AM CDT
In force: 46 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Monroe County, IL, Jefferson County, MO

The radar

The St Louis radar (KLSX), 66 km from the middle of the area, began a volume at 03:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Mississippi River at Herculaneum (HRCM7).

Action stage: 24 ft
Minor stage: 26 ft
Moderate stage: 32 ft
Major stage: 37 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

759 
WGUS43 KLSX 090305
FLWLSX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
1005 PM CDT Wed May 8 2024

...The National Weather Service in St Louis MO has issued a Flood 
Warning for the following river in Illinois...Missouri...

  Mississippi River at Mel Price LD.

  Mississippi River near Herculaneum.

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

&&

ILC119-MOC183-101515-
/O.NEW.KLSX.FL.W.0066.240509T2100Z-240514T1400Z/
/ALNI2.1.ER.240509T2100Z.240511T1800Z.240513T0800Z.NO/
1005 PM CDT Wed May 8 2024

...FLOOD WARNING IN EFFECT FROM THURSDAY AFTERNOON TO LATE TUESDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...From Thursday afternoon to late Tuesday morning.

* ADDITIONAL DETAILS...
  - At 9:30 PM CDT Wednesday the stage was 20.7 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow afternoon to a crest of 22.3 feet early Saturday
    afternoon.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Fri   Sat   Sun   Mon   Tue

Mississippi River
  Mel Price LD     21.0    20.7    21.5  22.2  22.0  20.8  19.8



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC133-MOC099-101515-
/O.NEW.KLSX.FL.W.0067.240510T1330Z-240514T0500Z/
/HRCM7.1.ER.240510T1330Z.240511T1800Z.240512T2230Z.UU/
1005 PM CDT Wed May 8 2024

...FLOOD WARNING IN EFFECT FROM FRIDAY MORNING TO EARLY TUESDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...From Friday morning to early Tuesday morning.

* ADDITIONAL DETAILS...
  - At 9:30 PM CDT Wednesday the stage was 24.9 feet.
  - Forecast...The river is expected to rise above flood stage
    Friday morning to a crest of 27.0 feet early Saturday
    afternoon.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Fri   Sat   Sun   Mon   Tue

Mississippi River
  Herculaneum      26.0    24.9    25.9  26.9  26.5  25.2  23.6



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

Gosselin

7 follow-up statements

644 
WGUS83 KLSX 091620
FLSLSX

Flood Statement
National Weather Service St Louis MO
1120 AM CDT Thu May 9 2024

...The Flood Warning is extended for the following rivers in 
Illinois...Missouri...

  Mississippi River at Mel Price LD.

  Mississippi River near Herculaneum.

...The Flood Warning continues for the following rivers in 
Illinois...Missouri...

  Mississippi River at Chester.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC119-MOC183-110430-
/O.EXT.KLSX.FL.W.0066.240510T0300Z-240514T2000Z/
/ALNI2.1.ER.240510T0300Z.240512T0000Z.240513T1400Z.NO/
1120 AM CDT Thu May 9 2024

...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO TUESDAY 
AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...From this evening to Tuesday afternoon.

* IMPACTS...At 23.0 feet, Dresser Island Drive floods within a foot 
  of this level.

* ADDITIONAL DETAILS...
  - At 11:00 AM CDT Thursday the stage was 20.7 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 22.5 feet Saturday evening.
    It will then fall below flood stage late Monday morning.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Fri   Sat   Sun   Mon   Tue

Mississippi River
  Mel Price LD     21.0    20.7    21.3  22.3  22.3  21.1  20.0



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC133-MOC099-110430-
/O.EXT.KLSX.FL.W.0067.240510T1312Z-240514T1500Z/
/HRCM7.1.ER.240510T1312Z.240511T1800Z.240513T0900Z.UU/
1120 AM CDT Thu May 9 2024

...FLOOD WARNING NOW IN EFFECT FROM FRIDAY MORNING TO LATE TUESDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...From Friday morning to late Tuesday morning.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Thursday the stage was 25.1 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 27.4 feet early Saturday
    afternoon. It will then fall below flood stage early Monday
    morning.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Fri   Sat   Sun   Mon   Tue

Mississippi River
  Herculaneum      26.0    25.1    25.9  27.3  27.1  25.8  24.2



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

ILC077-157-MOC157-186-110430-
/O.CON.KLSX.FL.W.0044.000000T0000Z-000000T0000Z/
/CHSI2.1.ER.240501T0507Z.240512T1800Z.000000T0000Z.NO/
1120 AM CDT Thu May 9 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until further notice.

* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed 
  between County Road 322 and Levee Road (County Road 354) at Bois 
  Brule Creek.

* ADDITIONAL DETAILS...
  - At 11:00 AM CDT Thursday the stage was 30.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 11:00 AM CDT Thursday was 30.2 feet.
  - Forecast...The river is expected to rise to a crest of 32.4
    feet early Sunday afternoon.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Fri   Sat   Sun   Mon   Tue

Mississippi River
  Chester          27.0    30.1    30.5  31.8  32.3  32.1  30.4



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

Fuchs

566 
WGUS83 KLSX 100311
FLSLSX

Flood Statement
National Weather Service St Louis MO
1011 PM CDT Thu May 9 2024

...The Flood Warning continues for the following rivers in 
Missouri...Illinois...

  Mississippi River at Mel Price LD.

  Mississippi River at Chester.

  Mississippi River near Herculaneum.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC119-MOC183-111515-
/O.EXT.KLSX.FL.W.0066.000000T0000Z-240514T1000Z/
/ALNI2.1.ER.240510T0300Z.240511T0600Z.240513T0400Z.NO/
1011 PM CDT Thu May 9 2024

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...Until early Tuesday morning.

* IMPACTS...At 21.0 feet, Flood Stage.  Minor flooding begins to 
  occur at this level.

* ADDITIONAL DETAILS...
  - At 10:00 PM CDT Thursday the stage was 21.0 feet and rising.
  - Recent Activity...The river first rose above flood stage on
    April 30, cresting near 23.6 feet on May 2. It since fell
    back below flood stage, but has hovered within a foot on
    either side of flood stage for the last several days. It has
    recently begun another rise, just rising above flood stage
    again on May 9.
  - Forecast...The river is expected to rise to a crest of 21.9
    feet early Saturday morning. It will then fall below flood
    stage late Sunday evening.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Mel Price LD     21.0    21.0    21.9  21.6  20.7  19.9  19.3



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC077-157-MOC157-186-111515-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-240517T0000Z/
/CHSI2.1.ER.240501T0507Z.240512T0000Z.240515T1800Z.NO/
1011 PM CDT Thu May 9 2024

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY, MAY 16...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until Thursday, May 16.

* IMPACTS...At 32.5 feet, The Road at Fort Gage Farm begins flooding 
  at Menard Correctional Center.

* ADDITIONAL DETAILS...
  - At 10:00 PM CDT Thursday the stage was 30.2 feet.
  - Recent Activity...The river first rose above flood stage on
    May 1, cresting near 31.1 feet on May 3. It has since begun
    another rise.
  - Forecast...The river is expected to rise to a crest of 32.1
    feet Saturday evening. It will then fall below flood stage
    early Wednesday afternoon.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Chester          27.0    30.2    31.9  32.1  31.5  29.7  27.5



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

ILC133-MOC099-111515-
/O.EXT.KLSX.FL.W.0067.240510T1800Z-240513T2100Z/
/HRCM7.1.ER.240510T1800Z.240511T1200Z.240512T1500Z.UU/
1011 PM CDT Thu May 9 2024

...FLOOD WARNING NOW IN EFFECT FROM FRIDAY AFTERNOON TO MONDAY 
AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...From Friday afternoon to Monday afternoon.

* IMPACTS...At 28.3 feet, Near this height, the walking trail 
  (extension of Station Road) at Bates Memorial Park begins flooding.

* ADDITIONAL DETAILS...
  - At 9:30 PM CDT Thursday the stage was 25.4 feet and rising.
  - Forecast...The river is expected to rise above flood stage
    early tomorrow afternoon to a crest of 26.5 feet Saturday
    morning. It will then fall below flood stage late Sunday
    morning.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Herculaneum      26.0    25.4    26.5  26.1  25.0  23.7  22.7



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

Kimble

895 
WGUS83 KLSX 101638
FLSLSX

Flood Statement
National Weather Service St Louis MO
1138 AM CDT Fri May 10 2024

...The Flood Warning is extended for the following rivers in 
Illinois...Missouri...

  Mississippi River at Mel Price LD.

  Mississippi River at Chester.

  Mississippi River near Herculaneum.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC119-MOC183-120445-
/O.EXT.KLSX.FL.W.0066.000000T0000Z-240514T1200Z/
/ALNI2.1.ER.240510T0300Z.240511T1200Z.240513T0600Z.NO/
1138 AM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...Until Tuesday morning.

* IMPACTS...At 21.0 feet, Flood Stage.  Minor flooding begins to 
  occur at this level.

* ADDITIONAL DETAILS...
  - At 11:00 AM CDT Friday the stage was 21.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 11:00 AM CDT Friday was 21.4 feet.
  - Forecast...The river is expected to rise to a crest of 21.9
    feet tomorrow morning. It will then fall below flood stage
    early Monday morning.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Mel Price LD     21.0    21.4    21.9  21.6  20.8  20.1  19.5



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC077-157-MOC157-186-120445-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-240517T0300Z/
/CHSI2.1.ER.240501T0507Z.240512T0600Z.240515T2100Z.NO/
1138 AM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until late Thursday evening.

* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed 
  between County Road 322 and Levee Road (County Road 354) at Bois 
  Brule Creek.

* ADDITIONAL DETAILS...
  - At 11:30 AM CDT Friday the stage was 30.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 11:30 AM CDT Friday was 30.3 feet.
  - Forecast...The river is expected to rise to a crest of 32.0
    feet early Sunday morning. It will then fall below flood
    stage Wednesday afternoon.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Chester          27.0    30.2    31.6  32.0  31.5  29.8  27.7



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

ILC133-MOC099-120445-
/O.EXT.KLSX.FL.W.0067.240510T1800Z-240513T2200Z/
/HRCM7.1.ER.240510T1800Z.240511T1200Z.240512T1600Z.UU/
1138 AM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...Until Monday afternoon.

* ADDITIONAL DETAILS...
  - At 11:00 AM CDT Friday the stage was 25.9 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 26.5 feet tomorrow morning. It
    will then fall below flood stage late Sunday morning.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sat   Sun   Mon   Tue   Wed

Mississippi River
  Herculaneum      26.0    25.9    26.5  26.2  25.2  24.0  23.0



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

Byrd

683 
WGUS83 KLSX 110225
FLSLSX

Flood Statement
National Weather Service St Louis MO
925 PM CDT Fri May 10 2024

...The Flood Warning continues for the following rivers in 
Missouri...Illinois...

  Mississippi River near Herculaneum.

  Mississippi River at Mel Price LD.

  Mississippi River at Chester.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC133-MOC099-121430-
/O.EXT.KLSX.FL.W.0067.000000T0000Z-240513T1800Z/
/HRCM7.1.ER.240510T1915Z.240511T1200Z.240512T1200Z.UU/
925 PM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY MONDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...Until early Monday afternoon.

* IMPACTS...At 28.3 feet, Near this height, the walking trail 
  (extension of Station Road) at Bates Memorial Park begins flooding.

* ADDITIONAL DETAILS...
  - At 8:30 PM CDT Friday the stage was 26.2 feet and rising.
  - Recent Activity...The river first rose above flood stage on
    May 10.
  - Forecast...The river is expected to rise to a crest of 26.5
    feet tomorrow morning. It will then fall below flood stage
    Sunday morning.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Herculaneum      26.0    26.2    26.0  25.0  23.9  22.9  22.3



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

ILC119-MOC183-121430-
/O.EXT.KLSX.FL.W.0066.000000T0000Z-240514T0300Z/
/ALNI2.1.ER.240510T0300Z.240511T1200Z.240512T2100Z.NO/
925 PM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...Until late Monday evening.

* IMPACTS...At 21.0 feet, Flood Stage.  Minor flooding begins to 
  occur at this level.

* ADDITIONAL DETAILS...
  - At 9:00 PM CDT Friday the stage was 21.6 feet and rising.
  - Recent Activity...The river first rose above flood stage on
    April 30, cresting near 23.6 feet on May 2. It since fell
    back below flood stage, but has hovered within a foot on
    either side of flood stage for the last several days. It has
    recently begun another rise, just rising above flood stage
    again on May 9.
  - Forecast...The river is expected to rise to a crest of 21.8
    feet tomorrow morning. It will then fall below flood stage
    Sunday afternoon.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Mel Price LD     21.0    21.6    21.3  20.5  19.9  19.3  18.9



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC077-157-MOC157-186-121430-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-240516T1400Z/
/CHSI2.1.ER.240501T0507Z.240512T0000Z.240515T0800Z.NO/
925 PM CDT Fri May 10 2024

...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until late Thursday morning.

* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed 
  between County Road 322 and Levee Road (County Road 354) at Bois 
  Brule Creek.

* ADDITIONAL DETAILS...
  - At 9:00 PM CDT Friday the stage was 30.5 feet.
  - Recent Activity...The river first rose above flood stage on
    May 1, cresting near 31.1 feet on May 3. It has since begun
    another rise.
  - Forecast...The river is expected to rise to a crest of 31.2
    feet tomorrow evening. It will then fall below flood stage
    early Wednesday morning.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Chester          27.0    30.5    31.2  30.4  28.5  26.8  25.7



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

Kimble

624 
WGUS83 KLSX 111602
FLSLSX

Flood Statement
National Weather Service St Louis MO
1102 AM CDT Sat May 11 2024

...The Flood Warning continues for the following rivers in 
Illinois...Missouri...

  Mississippi River near Herculaneum.

...The Flood Warning is extended for the following rivers in 
Illinois...Missouri...

  Mississippi River at Mel Price LD.

  Mississippi River at Chester.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC133-MOC099-130415-
/O.EXT.KLSX.FL.W.0067.000000T0000Z-240513T1200Z/
/HRCM7.1.ER.240510T1915Z.240511T1300Z.240512T0600Z.UU/
1102 AM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...Until Monday morning.

* IMPACTS...At 28.3 feet, Near this height, the walking trail 
  (extension of Station Road) at Bates Memorial Park begins flooding.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Saturday the stage was 26.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:00 AM CDT Saturday was 26.4 feet.
  - Forecast...The river is expected to fall below flood stage
    just after midnight tonight and continue falling to 22.6 feet
    Friday morning.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Herculaneum      26.0    26.4    25.7  24.7  23.9  23.4  23.0



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

ILC119-MOC183-130415-
/O.EXT.KLSX.FL.W.0066.000000T0000Z-240514T0400Z/
/ALNI2.1.ER.240510T0300Z.240511T1530Z.240512T2200Z.NO/
1102 AM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...Until late Monday evening.

* IMPACTS...At 21.0 feet, Flood Stage.  Minor flooding begins to 
  occur at this level.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Saturday the stage was 21.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:30 AM CDT Saturday was 21.8 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow afternoon and continue falling to 19.0 feet Friday
    morning.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Mel Price LD     21.0    21.8    21.4  20.5  19.9  19.5  19.2



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC077-157-MOC157-186-130415-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-240516T2200Z/
/CHSI2.1.ER.240501T0507Z.240512T0000Z.240515T1600Z.NO/
1102 AM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until Thursday afternoon.

* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed 
  between County Road 322 and Levee Road (County Road 354) at Bois 
  Brule Creek.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Saturday the stage was 30.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 10:30 AM CDT Saturday was 30.7 feet.
  - Forecast...The river is expected to rise to a crest of 30.9
    feet this evening. It will then fall below flood stage late
    Wednesday morning.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Sun   Mon   Tue   Wed   Thu

Mississippi River
  Chester          27.0    30.7    30.9  30.3  28.7  27.2  26.4



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

19

305 
WGUS83 KLSX 120249
FLSLSX

Flood Statement
National Weather Service St Louis MO
949 PM CDT Sat May 11 2024

...The Flood Warning is extended for the following rivers in 
Missouri...Illinois...

  Mississippi River near Herculaneum.

  Mississippi River at Mel Price LD.

...The Flood Warning continues for the following rivers in 
Missouri...Illinois...

  Mississippi River at Chester.

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.

This product, along with additional weather and stream information, 
is available at https://water.noaa.gov/wfo/lsx

&&

ILC133-MOC099-131500-
/O.EXT.KLSX.FL.W.0067.000000T0000Z-240513T1800Z/
/HRCM7.1.ER.240510T1915Z.240511T1300Z.240512T1200Z.UU/
949 PM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY MONDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River near Herculaneum.

* WHEN...Until early Monday afternoon.

* ADDITIONAL DETAILS...
  - At 9:00 PM CDT Saturday the stage was 26.3 feet and falling.
  - Recent Activity...The river first rose above flood stage on
    May 10. It crested at 26.4 feet on May 11.
  - Forecast...The river is expected to fall below flood stage
    tomorrow morning and continue falling next week.
  - Flood stage is 26.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Mon   Tue   Wed   Thu   Fri

Mississippi River
  Herculaneum      26.0    26.3    24.7  23.8  23.3  23.0  22.7



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

ILC119-MOC183-131500-
/O.EXT.KLSX.FL.W.0066.000000T0000Z-240514T1000Z/
/ALNI2.1.ER.240510T0300Z.240512T0130Z.240513T0400Z.NO/
949 PM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Mel Price LD.

* WHEN...Until early Tuesday morning.

* IMPACTS...At 21.0 feet, Flood Stage.  Minor flooding begins to 
  occur at this level.

* ADDITIONAL DETAILS...
  - At 9:30 PM CDT Saturday the stage was 21.8 feet.
  - Recent Activity...The river first rose above flood stage on
    April 30, cresting near 23.6 feet on May 2. It since fell
    back below flood stage, but hovered within a foot on either
    side of flood stage for several days. It's most recent crest
    was 21.8 feet on May 11.
  - Forecast...The river is expected to fall below flood stage
    late tomorrow evening and continue falling next week.
  - Flood stage is 21.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Mon   Tue   Wed   Thu   Fri

Mississippi River
  Mel Price LD     21.0    21.8    20.6  19.9  19.5  19.2  19.1



&&

LAT...LON 3888 9015 3887 9009 3883 9004 3881 9017
      3884 9018


$$

ILC077-157-MOC157-186-131500-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-240516T1600Z/
/CHSI2.1.ER.240501T0507Z.240511T2200Z.240515T1000Z.NO/
949 PM CDT Sat May 11 2024

...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Chester.

* WHEN...Until late Thursday morning.

* IMPACTS...At 31.5 feet, In Perry County, Highway E is closed 
  between County Road 322 and Levee Road (County Road 354) at Bois 
  Brule Creek.

* ADDITIONAL DETAILS...
  - At 9:30 PM CDT Saturday the stage was 30.8 feet.
  - Recent Activity...The river first rose above flood stage on
    May 1, cresting near 31.1 feet on May 3. It's most recent
    rise is nearing a crest.
  - Forecast...The river is expected to rise to a crest of 30.9
    feet just after midnight tonight. It will then fall below
    flood stage early Wednesday morning.
  - Flood stage is 27.0 feet.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Mon   Tue   Wed   Thu   Fri

Mississippi River
  Chester          27.0    30.8    30.3  28.6  26.9  26.2  25.9



&&

LAT...LON 3826 9043 3826 9030 3769 8935 3769 8959
      3787 9003


$$

Kimble

074 
WGUS83 KLSX 121150
FLSLSX

Flood Statement
National Weather Service St Louis MO
650 AM CDT Sun May 12 2024

...The Flood Warning is cancelled for the following rivers in 
Illinois...Missouri...

  Mississippi River near Herculaneum.

River forecasts are based on observed precipitation and forecast 
precipitation for the next 24 hours.

ILC133-MOC099-121300-
/O.CAN.KLSX.FL.W.0067.000000T0000Z-240512T1150Z/
/HRCM7.1.ER.240510T1915Z.240511T1300Z.240512T1200Z.UU/
650 AM CDT Sun May 12 2024

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Mississippi River near Herculaneum.

* ADDITIONAL DETAILS...
  - At 6:00 AM CDT Sunday the stage was 25.9 feet.
  - Forecast...The river is expected to continue to fall.



&&


                   Fld   Observed  Forecasts (7:00 am)
Location           Stg    Stage    Mon   Tue   Wed   Thu   Fri

Mississippi River
  Herculaneum      26.0    25.9    24.7  23.8  23.3  23.0  22.7



&&

LAT...LON 3839 9026 3826 9030 3817 9021 3800 8995
      3795 9005 3821 9042 3839 9037


$$

Maples

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before this river flood warning went out at May 8, 6:33 PM CDT, 3 hours 32 minutes earlier. Its key messages:

Scattered strong to severe thunderstorms will persist through early this evening. All hazards are expected: large hail, damaging winds, isolated tornadoes, as well as flash flooding.
A period of much needed calmer weather and cooler temperatures is expected to end the week and continue through the weekend.

Area forecast discussion, May 8, 6:33 PM CDT, 3 hours 32 minutes before

Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
633 PM CDT Wed May 8 2024

.KEY MESSAGES...

- Scattered strong to severe thunderstorms will persist through
  early this evening. All hazards are expected: large hail,
  damaging winds, isolated tornadoes, as well as flash flooding.

- A period of much needed calmer weather and cooler temperatures is
  expected to end the week and continue through the weekend.

&&

.SHORT TERM...  (Through Late Thursday Night)
Issued at 344 PM CDT Wed May 8 2024

(Late This Afternoon Through Tonight)

As of 3 pm, outflow from the activity continues to sink south and
extends from just north of Springfield, MO to just south of
Carbondale, IL. The warm sector along and south of the boundary
remains quite unstable with MU CAPEs in excess of 3000 J/kg, ML
lapse rates of 7-8C/km and 0-6km bulk shear 50-60kts. Also, the
ongoing activity, over far southeastern sections of CWA, has
congealed into a line with embedded supercells, while further west,
in NWS Springfield's area, discrete supercells are forming along
the outflow boundary. These storms will slide east northeast
moving into the southern portions of the CWA by 21z. Therefore,
there remains a tornado threat as well as large hail possible.
North of the outflow boundary, could see scattered strong to
severe storms with the main threat being large hail.

Otherwise, as the surface low over NE OK lifts northeastward it will
drag a cold front eastward through the forecast area, with the
precipitation tapering off from west to east. The front will exit
the region by 05z Thursday.

Still some concern for isolated flash flooding as some storms may
train over the area, especially south of I-70. So will not make any
adjustments to the Flash Flood watch at this time.

Lows tonight will be in the low 50s to low 60s.

(Thursday through Thursday Night)

On Thursday, a secondary shortwave/cold front on the backside of the
system will slide southeast through the region. So expect increasing
clouds, especially north of I-70. Otherwise, there will be enough
moisture and weak instability to generate scattered showers and a
few thunderstorms over portions of northeast Missouri and west
central Illinois late morning through early evening. Otherwise,
highs on Thursday will be near normal in the upper 60s to upper 70s.
Lows Thursday night will be in the upper 40s to low 50s.

Byrd
&&

.LONG TERM...  (Friday through Next Wednesday)
Issued at 344 PM CDT Wed May 8 2024

Cooler and drier weather through the rest of the work week and
into the weekend. Beyond that, upper level trough over the western
CONUS will begin to lift out towards the region with chances of
showers and storms late on Sunday through mid week. Still a lot of
timing, strength and location differences among the ensembles and
deterministic models, so stuck with the latest NBM solution.
Temperatures will moderate through the period with highs in the
mid 70s to low 80s.

Byrd
&&

.AVIATION...  (For the 00z TAFs through 00z Thursday Evening)
Issued at 631 PM CDT Wed May 8 2024

Main area of showers and storms have exited TAF sites, though some
isolated activity still possible. Kept vicinity thunderstorm
mention at KUIN and St. Louis metro TAF sites through 03z-04z
Thursday, while better chances at KCOU and KJEF so added tempo
mention from 00z to 01z. Otherwise, cold front will move through
this evening with south winds veering to the west to northwest.
Will see gusts up to 25kts at times Thursday afternoon.

Still expecting some wrap around SC deck on back side of system
with some scattered showers possible Thursday afternoon,
especially at KUIN, so kept MVFR ceilings from 04z Thursday
through remainder of forecast period. Could see the MVFR ceilings
as far south as St. Louis metro area between 09z and 12z Thursday.

Byrd
&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch until midnight CDT tonight for Cole MO-Crawford MO-
     Franklin MO-Gasconade MO-Iron MO-Jefferson MO-Madison MO-
     Moniteau MO-Osage MO-Reynolds MO-Saint Francois MO-Saint
     Louis City MO-Saint Louis MO-Sainte Genevieve MO-Washington
     MO.

IL...Flood Watch until midnight CDT tonight for Monroe IL-Randolph IL-
     Saint Clair IL.

&&

WFO LSX

Hazardous weather outlook, May 8, 9:48 PM CDT, 17 minutes before

Hazardous Weather Outlook
National Weather Service St Louis MO
948 PM CDT Wed May 8 2024

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-100300-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
948 PM CDT Wed May 8 2024

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight.

There is a chance for thunderstorms across parts of the area through
the early overnight hours.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a chance of thunderstorms for parts of the area from late
Sunday through Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Gosselin

In the hours before

Local storm report, May 8, 8:58 PM CDT, 1 hour 7 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
858 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0849 PM     Tstm Wnd Dmg     Annapolis               37.36N 90.70W
05/08/2024                   Iron               MO   Law Enforcement

            Trees down and debris off Hwy K near
            Annapolis.

&&

LSJ

Local storm report, May 8, 9:05 PM CDT, 1 hour before

Preliminary Local Storm Report
National Weather Service St Louis MO
905 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 PM     Flash Flood      1 W Festus              38.22N 90.43W
05/08/2024                   Jefferson          MO   911 Call Center

            Multiple roads closed in Jefferson County
            including Harrison Lake Road along Joachim
            Creek.

&&

JPG

Local storm report, May 8, 9:15 PM CDT, 50 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
915 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0908 PM     Tstm Wnd Dmg     Fredericktown           37.56N 90.29W
05/08/2024                   Madison            MO   Fire Dept/Rescue

            Numerous reports of power outages in
            Fredericktown.

&&

LSJ

Local storm report, May 8, 9:19 PM CDT, 46 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
919 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0849 PM     Tstm Wnd Dmg     1 E Annapolis           37.36N 90.68W
05/08/2024                   Iron               MO   Emergency Mngr

            Heavy tree damage and part of a school roof
            missing.

&&

LSJ

Local storm report, May 8, 9:30 PM CDT, 35 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
930 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0910 PM     Tstm Wnd Dmg     3 S Catherine Place     37.53N 90.33W
05/08/2024                   Madison            MO   Public

            Via subreddit. Large tree of unknown health
            fallen in Fredericktown.

&&

LSJ

Local storm report, May 8, 9:47 PM CDT, 18 minutes before

Preliminary Local Storm Report
National Weather Service St Louis MO
947 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0915 PM     Tstm Wnd Dmg     2 N Mine La Motte       37.64N 90.28W
05/08/2024                   Madison            MO   Emergency Mngr

            Trees and lines down near Dear Run Lake.
            Time estimated from radar.

&&

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 7:06 PM CDT	Severe Thunderstorm Warning	LSX	Marion	28 min
May 8, 7:14 PM CDT	Areal Flood Advisory	LSX	Clinton, Marion, Washington	3 hr
May 8, 10:05 PM CDT	River Flood Warning	LSX	Madison	5 days
May 8, 8:21 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	39 min
May 8, 8:38 PM CDT	River Flood Warning	LSX	Saint Charles, Saint Louis	3 days
May 8, 8:38 PM CDT	River Flood Warning	LSX	Franklin, Warren	57 hr
May 8, 8:57 PM CDT	Tornado Warning	LSX	Iron, Madison	33 min
May 8, 9:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Sainte Genevieve, Saint Francois	29 min
May 8, 10:01 PM CDT	River Flood Warning	LSX	Franklin	69 hr
May 8, 10:01 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	5 days
May 8, 10:01 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	5 days
May 9, 10:02 AM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	5 days

Nearby

River Flood Warnings in Illinois, 2024 River Flood Warnings in Missouri, 2024 Every river flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.