Alert archive / Missouri / Flash Flood Warnings in 2011
Flash Flood Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 25, 2011, 7:23 PM CDT for 9 counties in Missouri; 6 counties in Illinois. It was in force for 9 hr. 10 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 25, 2011, 7:23 PM CDT (00:23 UTC)
- Expired
- Apr 26, 2011, 4:52 AM CDT
- In force
- 9 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clinton County, IL, Marion County, IL, Monroe County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Crawford County, MO, Franklin County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 00:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 25, 7:27 PM CDT | HEAVY RAIN 8.42 | 2 Sse Chester, IL | BETWEEN 6 AM FRIDAY...APRIL 22ND AND 6 AM MONDAY APRIL 25TH...6.06 INCHES OF RAIN FELL. THEN AN ADDITIONAL 2.36 INCHES HAS FALLEN SINCE THIS MORNING. STILL RAINING. |
| Apr 25, 7:50 PM CDT | HEAVY RAIN 5.5 | Bonne Terre, MO | 1.85 INCHES SINCE 1130 AM TODAY. STILL RAINING. 5.50 INCHES SINCE FRIDAY APRIL 22ND. |
| Apr 25, 8:00 PM CDT | FLASH FLOOD | Centralia, IL | FLOODING OF A RESTAURANT PARKING LOT CAUSED VAN TO FLOAT INTO A NEARBY DITCH. EXACT TIME UNKNOWN. |
| Apr 25, 8:00 PM CDT | FLASH FLOOD | Ellington, MO | 24 HOUR RAINFALL TOTAL 4.40 INCHES. HEAVIEST RAINS YESTERDAY EVENING PROMPTED EVACUATIONS OF PARTS OF ELLINGTON. EVACUEES WERE HOUSED AT LOCAL SCHOOL DURING THE FLOODING... BUT WERE ALLOWED TO RETURN HOME AFTER MIDNIGHT ONCE THE FLOODING SUBSIDED. TIME ESTIMAT |
| Apr 25, 8:14 PM CDT | HEAVY RAIN 3.85 | Du Bois, IL | AMOUNT FOR THE LAST 24 HOURS WITH 1.34 INCHES IN THE LAST HOUR. GUSTY WINDS TO AROUND 30 MPH. |
| Apr 25, 8:50 PM CDT | HEAVY RAIN 5.5 | Bonne Terre, MO | 1.85 INCHES SINCE 1130 AM TODAY. STILL RAINING. 5.50 INCHES SINCE FRIDAY APRIL 22ND. |
| Apr 25, 8:51 PM CDT | FLASH FLOOD | Salem, IL | LOTS OF FLOODING ON ROADS THAT NORMALLY DO NOT FLOOD. |
| Apr 25, 9:00 PM CDT | HEAVY RAIN 4.68 | 7 S Steelville, MO | RAINFALL SO FAR SINCE APRIL 21ST. |
| Apr 25, 9:35 PM CDT | FLASH FLOOD | 2 Ene Centralia, IL | SEVERAL VEHICLES ARE STALLING IN ROADWAYS DUE TO NEARLY TWO FEET OF WATER THROUGHOUT MANY ROADS AND INTERSECTIONS IN TOWN. CREEKS SPILLING OVER JUST WEST OF TOWN...CAUSING FLOODING ON IL ROUTE 161. |
| Apr 25, 10:54 PM CDT | FLASH FLOOD | Ellington, MO | THE STREAM GAGE HEIGHT ON THE LOGAN CREEK IN ELLINGTON IS 13.15 FEET. THE SHERIFF REPORTS PORTIONS OF THE TOWN HAVE BEEN EVACUATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.4 hours before the alert went out and 304 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 48 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
743
WGUS53 KLSX 260023
FFWLSX
ILC027-121-133-157-163-189-MOC055-071-093-099-123-179-186-187-221-
261800-
/O.NEW.KLSX.FF.W.0018.110426T0023Z-110426T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
723 PM CDT MON APR 25 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
IRON COUNTY IN SOUTHEAST MISSOURI...
JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
MADISON COUNTY IN SOUTHEAST MISSOURI...
MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
MONROE COUNTY IN SOUTHWEST ILLINOIS...
RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
REYNOLDS COUNTY IN SOUTHEAST MISSOURI...
SOUTHERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS...
SOUTHERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS...
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 100 PM CDT TUESDAY
* AT 712 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL EXTENDING FROM
NEAR SALEM ILLINOIS THROUGH SPARTA TO ELLINGTON. WIDESPREAD
FLOODING IS ALREADY OCCURRING ACROSS SOUTHEAST MISSOURI INTO
SOUTHERN ILLINOIS AND THIS RAINFALL WILL AGGRAVATE THOSE EXISTING
CONDITIONS.
THE DANGER OF THIS FLASH FLOOD SITUATION CANNOT BE
OVER-EMPHASIZED...THIS IS TRULY A LIFE-THREATENING WEATHER EVENT
FOR MUCH OF SOUTHERN MISSOURI AND EXTREME SOUTHWEST ILLINOIS.
THOSE LIVING IN FLOOD PRONE AREAS SHOULD EVACUATE NOW...IF THEY
HAVE NOT ALREADY DONE SO. BE AWARE THAT EVACUATION ROUTES MAY
BECOME BLOCKED. REPORTS INDICATE MANY MANY ROADS ARE ALREADY
CLOSED DUE TO FLOODING THROUGHOUT THE EASTERN OZARKS.
ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE BY
DAYBREAK ON WEDNESDAY...AND THIS IS IN ADDITION TO THE 5 TO 8
INCHES OF RAIN THAT HAS ALREADY FALLEN ACROSS SOME AREAS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTHONIES MILL...ANTONIA...BARNHART...BISMARCK...BONNE TERRE...
BOURBON...CEDAR HILL...CENTRALIA...CHESTER...CRYSTAL CITY...CUBA...
DE SOTO...DESLOGE...FARMINGTON...FESTUS...FREDERICKTOWN...
FREEBURG...HERCULANEUM...HILLSBORO...IRONTON...LEADWOOD...
NASHVILLE...PEVELY...POTOSI...RED BUD...SALEM...SPARTA...STE.
GENEVIEVE...STEELVILLE AND SULLIVAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
UNDER NO CIRCUMSTANCES SHOULD YOU DRIVE YOUR CAR THROUGH FLOOD
WATERS. IF YOUR ROUTE IS BLOCKED BY FLOOD WATERS...TRY TO FIND
ANOTHER ROUTE. IF YOU BECOME STRANDED BY HIGH WATER...CALL 9-1-1
AND ASK FOR ASSISTANCE.
&&
LAT...LON 3706 9097 3720 9114 3750 9122 3754 9132
3760 9117 3769 9117 3779 9154 3821 9154
3850 8972 3883 8871 3848 8870 3847 8914
3821 8915 3821 8959 3781 8969 3788 8993
3765 9014 3732 9015 3727 9073 3705 9079
$$
GLASS3 follow-up statements
050
WGUS73 KLSX 260353
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1053 PM CDT MON APR 25 2011
ILC027-121-133-157-163-189-MOC055-071-093-099-123-179-186-187-221-
261800-
/O.CON.KLSX.FF.W.0018.000000T0000Z-110426T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH IL-WASHINGTON IL-MONROE IL-ST. CLAIR IL-CLINTON IL-MARION
IL-REYNOLDS MO-MADISON MO-IRON MO-ST. FRANCOIS MO-STE. GENEVIEVE
MO-WASHINGTON MO-CRAWFORD MO-JEFFERSON MO-FRANKLIN MO-1041 PM CDT
MON APR 25 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN FRANKLIN...
JEFFERSON...CRAWFORD...WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS...
IRON...MADISON...REYNOLDS...MARION...SOUTHERN CLINTON...SOUTHERN ST.
CLAIR...MONROE...WASHINGTON AND RANDOLPH COUNTIES UNTIL 100 PM CDT
TUESDAY...
AT 1041 PM CDT...MODERATE RAIN WITH EMBEDDED THUNDERSTORMS CONTINUE
ACROSS MUCH OF SOUTHEAST MISSOURI AND SOUTHWEST ILLINOIS. RAINFALL
TOTALS ACROSS MUCH OF THIS REGION SINCE FRIDAY RANGE FROM 6 TO 9
INCHES AND THE WAVES OF HEAVY RAIN AND THUNDERSTORMS THIS EVENING
HAVE CAUSED ANOTHER UPWARD SURGE IN WATER LEVELS.
THE STREAM GAGE ON THE LOGAN CREEK IN ELLINGTON IN REYNOLDS COUNTY
IS ABOUT TO EXCEED THE LEVELS MEASURED IN MARCH 2008 WHEN THE ENTIRE
TOWN FLOODED. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT PORTIONS
OF ELLINGTON HAVE BEEN EVACUATED.
THE DANGER OF THIS FLASH FLOOD SITUATION CANNOT BE
OVER-EMPHASIZED...THIS IS TRULY A LIFE-THREATENING WEATHER EVENT
FOR MUCH OF SOUTHERN MISSOURI AND EXTREME SOUTHWEST ILLINOIS.
NUMEROUS ROADS ACROSS THE EASTERN OZARKS ARE ALREADY CLOSED DUE TO
FLOODING AND A NUMBER OF ROADS IN SOUTHWEST ILLINOIS ARE WATER
COVERED.
ADDITIONAL RAINFALL AMOUNTS THROUGH THE REMAINDER OF THE NIGHT
SHOULD BE AROUND 1 INCH...WITH SOME ISOLATED HIGHER TOTALS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTHONIES MILL...ANTONIA...BARNHART...BISMARCK...BONNE TERRE...
BOURBON...CENTRALIA...CHESTER...CRYSTAL CITY...CUBA...DE SOTO...
DESLOGE...FARMINGTON...FESTUS...FREDERICKTOWN...FREEBURG...
HERCULANEUM...HILLSBORO...IRONTON...LEADWOOD...NASHVILLE...PEVELY...
POTOSI...RED BUD...SALEM...SPARTA...STE. GENEVIEVE...STEELVILLE...
SULLIVAN AND WATERLOO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3706 9097 3720 9114 3750 9122 3754 9132
3760 9117 3769 9117 3779 9154 3821 9154
3850 8972 3883 8871 3848 8870 3847 8914
3821 8915 3821 8959 3781 8969 3788 8993
3765 9014 3732 9015 3727 9073 3705 9079
$$
GLASS482
WGUS73 KLSX 260511 CCA
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1211 AM CDT TUE APR 26 2011
ILC027-121-133-157-163-189-MOC055-071-093-099-123-179-186-187-221-
261800-
/O.CON.KLSX.FF.W.0018.000000T0000Z-110426T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH IL-WASHINGTON IL-MONROE IL-ST. CLAIR IL-CLINTON IL-MARION
IL-REYNOLDS MO-MADISON MO-IRON MO-ST. FRANCOIS MO-STE. GENEVIEVE
MO-WASHINGTON MO-CRAWFORD MO-JEFFERSON MO-FRANKLIN MO-
1211 AM CDT TUE APR 26 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN FRANKLIN...
JEFFERSON...CRAWFORD...WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS...
IRON...MADISON...REYNOLDS...MARION...SOUTHERN CLINTON...SOUTHERN ST.
CLAIR...MONROE...WASHINGTON AND RANDOLPH COUNTIES UNTIL 100 PM CDT
TUESDAY...
AT 1041 PM CDT...MODERATE RAIN WITH EMBEDDED THUNDERSTORMS CONTINUE
ACROSS MUCH OF SOUTHEAST MISSOURI AND SOUTHWEST ILLINOIS. RAINFALL
TOTALS ACROSS MUCH OF THIS REGION SINCE FRIDAY RANGE FROM 6 TO 9
INCHES AND THE WAVES OF HEAVY RAIN AND THUNDERSTORMS THIS EVENING
HAVE CAUSED ANOTHER UPWARD SURGE IN WATER LEVELS.
THE STREAM GAGE ON THE LOGAN CREEK IN ELLINGTON IN REYNOLDS COUNTY
IS ABOUT TO EXCEED THE LEVELS MEASURED IN MARCH 2008 WHEN THE ENTIRE
TOWN FLOODED. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT PORTIONS
OF ELLINGTON HAVE BEEN EVACUATED.
THE DANGER OF THIS FLASH FLOOD SITUATION CANNOT BE
OVER-EMPHASIZED...THIS IS TRULY A LIFE-THREATENING WEATHER EVENT
FOR MUCH OF SOUTHERN MISSOURI AND EXTREME SOUTHWEST ILLINOIS.
NUMEROUS ROADS ACROSS THE EASTERN OZARKS ARE ALREADY CLOSED DUE TO
FLOODING AND A NUMBER OF ROADS IN SOUTHWEST ILLINOIS ARE WATER
COVERED.
ADDITIONAL RAINFALL AMOUNTS THROUGH THE REMAINDER OF THE NIGHT
SHOULD BE AROUND 1 INCH...WITH SOME ISOLATED HIGHER TOTALS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANTHONIES MILL...ANTONIA...BARNHART...BISMARCK...BONNE TERRE...
BOURBON...CENTRALIA...CHESTER...CRYSTAL CITY...CUBA...DE SOTO...
DESLOGE...FARMINGTON...FESTUS...FREDERICKTOWN...FREEBURG...
HERCULANEUM...HILLSBORO...IRONTON...LEADWOOD...NASHVILLE...PEVELY...
POTOSI...RED BUD...SALEM...SPARTA...STE. GENEVIEVE...STEELVILLE...
SULLIVAN AND WATERLOO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3706 9097 3720 9114 3750 9122 3754 9132
3760 9117 3769 9117 3779 9154 3821 9154
3850 8972 3883 8871 3848 8870 3847 8914
3821 8915 3821 8959 3781 8969 3788 8993
3765 9014 3732 9015 3727 9073 3705 9079
$$
GLASS537
WGUS73 KLSX 260952
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
452 AM CDT TUE APR 26 2011
ILC027-121-133-157-163-189-MOC055-071-093-099-123-179-186-187-221-
261007-
/O.CAN.KLSX.FF.W.0018.000000T0000Z-110426T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH IL-WASHINGTON IL-MONROE IL-ST. CLAIR IL-CLINTON IL-MARION IL-
REYNOLDS MO-MADISON MO-IRON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-
WASHINGTON MO-CRAWFORD MO-JEFFERSON MO-FRANKLIN MO-
452 AM CDT TUE APR 26 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN
FRANKLIN...JEFFERSON...CRAWFORD...WASHINGTON...STE. GENEVIEVE...ST.
FRANCOIS...IRON...MADISON...REYNOLDS...MARION...SOUTHERN CLINTON...
SOUTHERN ST. CLAIR...MONROE...WASHINGTON AND RANDOLPH COUNTIES IS
CANCELLED...
EXCESS RUNOFF WILL CONTINUE TO CAUSE FLOODING OF LOW LYING
AREAS...BUT THE THREAT OF LIFE THREATENING FLASH FLOODING HAS ENDED.
AN AREAL FLOOD WARNING HAS BEEN ISSUED TO REPLACE THIS FLASH FLOOD
WARNING.
LAT...LON 3706 9097 3720 9114 3750 9122 3754 9132
3760 9117 3769 9117 3779 9154 3821 9154
3850 8972 3883 8871 3848 8870 3847 8914
3821 8915 3821 8959 3781 8969 3788 8993
3765 9014 3732 9015 3727 9073 3705 9079
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 4:50 AM CDT | Areal Flood Warning | LSX | Crawford, Franklin, Iron, Jefferson, Madison, Reynolds and 3 more | 30 hr |
| Apr 25, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 28 min |
| Apr 25, 9:00 PM CDT | Flash Flood Warning | LSX | Bond, Clinton, Fayette, Madison, Marion, Montgomery | 6 hr |
Nearby
Flash Flood Warnings in Missouri, 2011Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.