Hazard Report Provided By forecast.weather.gov

Flood Watch
National Weather Service St Louis MO
313 AM CDT Fri Apr 4 2025

ILZ064-065-069-070-074-079-100>102-MOZ062>065-072>075-084-085-099-
042315-
/O.CON.KLSX.FA.A.0001.000000T0000Z-250406T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair IL-Monroe IL-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-
Including the cities of Vandalia, Farmington, Union, Belleville,
Saint Louis, Centralia, Chester, Salem, Alton, Washington,
Sullivan, Cahokia, Sparta, and Edwardsville
313 AM CDT Fri Apr 4 2025

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SATURDAY NIGHT...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

* WHERE...Portions of Illinois, including the following areas, Bond
  IL, Clinton IL, Fayette IL, Madison IL, Marion IL, Monroe IL,
  Randolph IL, Saint Clair IL and Washington IL and Missouri,
  including the following areas, Crawford MO, Franklin MO, Iron MO,
  Jefferson MO, Madison MO, Reynolds MO, Saint Francois MO, Saint
  Louis City MO, Saint Louis MO, Sainte Genevieve MO and Washington
  MO.

* WHEN...Through late Saturday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Creeks and streams may rise out of their banks.

* ADDITIONAL DETAILS...
  - Several rounds of showers and thunderstorms are expected
    through Saturday night, with the heaviest rainfall and
    greatest threat of flash flooding this evening into early
    overnight. Moderate to major river flooding is possible in
    response to heavy rainfall amounts.


$$

Pfahler

Hazardous Weather Outlook
National Weather Service St Louis MO
425 AM CDT Fri Apr 4 2025

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-050930-
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-
425 AM CDT Fri Apr 4 2025

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

.DAY ONE...Today and tonight.

Thunderstorms are expected across portions of the area today and
tonight. A few thunderstorms could be severe this afternoon and
evening with large hail the primary threat. However, there is a
conditional threat of tornadoes and damaging winds in southeastern
Missouri and southwestern Illinois.

Periods of thunderstorms will heavy rainfall are expected to persist,
with the greatest chance of flash flooding this evening into early
overnight in across southeastern Missouri and southwestern Illinois.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Moderate to major river flooding is possible as a result of heavy
rainfall.

There is a slight chance of thunderstorms Wednesday night into
Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Pfahler

Flood Statement
National Weather Service St Louis MO
837 PM CDT Thu Apr 3 2025

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

  Meramec River near Sullivan.

  Meramec River near Steelville.

  Meramec River near Eureka.

  Meramec River at Pacific.

  Meramec River at Valley Park.

  Meramec River near Arnold.

  Meramec River at Fenton.

  Kaskaskia River at Carlyle.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

&&

MOC099-189-051345-
/O.EXT.KLSX.FL.W.0007.250405T1800Z-000000T0000Z/
/ERKM7.3.ER.250405T1800Z.250409T0000Z.000000T0000Z.NO/
837 PM CDT Thu Apr 3 2025

...FLOOD WARNING NOW IN EFFECT FROM SATURDAY AFTERNOON UNTIL FURTHER
NOTICE...

* WHAT...Major flooding is forecast.

* WHERE...Meramec River near Eureka.

* WHEN...From Saturday afternoon until further notice.

* IMPACTS...At 35.0 feet, Lighthouse Storage property begins to
  flood.  Shelters and roads within Route 66 State Park are also
  flooded at this level.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Thursday the stage was 5.5 feet.
  - Forecast...The river is expected to rise above flood stage
    early Saturday afternoon and continue rising to a crest of
    37.9 feet Tuesday evening.
  - Flood stage is 19.0 feet.
  - Flood History...This crest compares to a previous crest of
    38.9 feet on 06/11/1945.



&&


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

Meramec River
  Eureka       19.0    5.5     15.9  24.9  32.6  37.6  35.5



&&

LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
      3850 9056


$$

Flood Statement
National Weather Service St Louis MO
837 PM CDT Thu Apr 3 2025

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

  Meramec River near Sullivan.

  Meramec River near Steelville.

  Meramec River near Eureka.

  Meramec River at Pacific.

  Meramec River at Valley Park.

  Meramec River near Arnold.

  Meramec River at Fenton.

  Kaskaskia River at Carlyle.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

&&

MOC099-189-051345-
/O.EXT.KLSX.FL.W.0009.250406T0018Z-000000T0000Z/
/VLLM7.3.ER.250406T0018Z.250409T0000Z.000000T0000Z.NO/
837 PM CDT Thu Apr 3 2025

...FLOOD WARNING NOW IN EFFECT FROM SATURDAY EVENING UNTIL FURTHER
NOTICE...

* WHAT...Major flooding is forecast.

* WHERE...Meramec River at Valley Park.

* WHEN...From Saturday evening until further notice.

* IMPACTS...At 33.0 feet, Old Highway 141 is closed at Gravois Road
  and at Gravois Bluffs Blvd.  This impact level may vary depending
  on the crest difference of the Mississippi River at St. Louis from
  30.8 ft, the March 2008 crest.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Thursday the stage was 1.8 feet.
  - Forecast...The river is expected to rise above flood stage
    Saturday evening and continue rising to a crest of 33.6 feet
    Tuesday evening.
  - Flood stage is 18.0 feet.
  - Flood History...This crest compares to a previous crest of
    33.0 feet on 05/03/1983.



&&


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

Meramec River
  Valley Park  18.0    1.8     12.7  21.2  26.8  32.4  32.1



&&

LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
      3853 9042 3853 9051


$$

Flood Statement
National Weather Service St Louis MO
837 PM CDT Thu Apr 3 2025

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

  Meramec River near Sullivan.

  Meramec River near Steelville.

  Meramec River near Eureka.

  Meramec River at Pacific.

  Meramec River at Valley Park.

  Meramec River near Arnold.

  Meramec River at Fenton.

  Kaskaskia River at Carlyle.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

&&

MOC099-189-051345-
/O.EXT.KLSX.FL.W.0011.250406T0712Z-000000T0000Z/
/ARNM7.2.ER.250406T0712Z.250409T0600Z.000000T0000Z.NO/
837 PM CDT Thu Apr 3 2025

...FLOOD WARNING NOW IN EFFECT FROM LATE SATURDAY NIGHT UNTIL
FURTHER NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Meramec River near Arnold.

* WHEN...From late Saturday night until further notice.

* IMPACTS...At 37.4 feet, Homes on Countryside Circle, Eljon Drive,
  Babbs Lane, and Lavernal Lane begin flooding.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Thursday the stage was 8.9 feet.
  - Forecast...The river is expected to rise above flood stage
    early Sunday morning and continue rising to a crest of 37.1
    feet early Wednesday morning.
  - Flood stage is 24.0 feet.



&&


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

Meramec River
  Arnold       24.0    8.9     14.7  25.6  29.9  34.6  37.0



&&

LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
      3841 9036 3842 9037 3843 9036 3845 9036
      3845 9041


$$

Flood Statement
National Weather Service St Louis MO
837 PM CDT Thu Apr 3 2025

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

  Meramec River near Sullivan.

  Meramec River near Steelville.

  Meramec River near Eureka.

  Meramec River at Pacific.

  Meramec River at Valley Park.

  Meramec River near Arnold.

  Meramec River at Fenton.

  Kaskaskia River at Carlyle.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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

&&

MOC099-189-051345-
/O.EXT.KLSX.FL.W.0012.250406T2217Z-000000T0000Z/
/FNNM7.2.ER.250406T2217Z.250409T0600Z.000000T0000Z.NO/
837 PM CDT Thu Apr 3 2025

...FLOOD WARNING NOW IN EFFECT FROM SUNDAY AFTERNOON UNTIL FURTHER
NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Meramec River at Fenton.

* WHEN...From Sunday afternoon until further notice.

* IMPACTS...At 32.0 feet, Brannan`s Marine and Motorsports begin
  flooding at this height.

* ADDITIONAL DETAILS...
  - At 8:15 PM CDT Thursday the stage was 5.2 feet.
  - Forecast...The river is expected to rise above flood stage
    Sunday afternoon and continue rising to a crest of 31.9 feet
    early Wednesday morning.
  - Flood stage is 23.0 feet.



&&


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

Meramec River
  Fenton       23.0    5.2     11.2  21.8  24.7  29.9  31.7



&&

LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
      3847 9044 3848 9044 3849 9042 3851 9045


$$

Hazard Report Provided By forecast.weather.gov