Alert archive / Missouri / Flash Flood Warnings in 2014

Flash Flood Warning 1, NWS St. Louis, MO

April 2, 2014Madison County, Illinois; Saint Charles County, Saint Louis County, City of Saint Louis, Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 2, 2014, 2:12 PM CDT for Madison County, Illinois; Saint Charles County, Saint Louis County, City of Saint Louis, Missouri. It was in force for 4 hr. 4 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 2, 2014, 2:12 PM CDT (19:12 UTC)
Expired
Apr 2, 2014, 6:00 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Madison County, IL, City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 36 km from the middle of the area, began a volume at 19:14 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

TimeReportWhereRemark
Apr 2, 3:08 PM CDTFLASH FLOODMaryland Heights, MOSTREAM GAGE ON FEE FEE CREEK IN MARYLAND HEIGHTS FFCM7 EXCEEDED THE 13 FOOT FLOOD STAGE AT 2...08 P.M. CDT.
Apr 2, 3:20 PM CDTHEAVY RAIN 3.2Granite City, ILTOTAL SINCE MIDNIGHT
Apr 2, 3:56 PM CDTHEAVY RAIN 4.31St. Ann, MO
Apr 2, 4:47 PM CDTHEAVY RAIN 4.02Edwardsville, IL

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 12:00Z, 7.2 hours before the alert went out and 217 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2014-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2014-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1520 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

685 
WGUS53 KLSX 021912
FFWLSX
ILC119-MOC183-189-510-022300-
/O.NEW.KLSX.FF.W.0001.140402T1912Z-140402T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
212 PM CDT WED APR 2 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
  MADISON COUNTY IN SOUTHWEST ILLINOIS...
  NORTHERN ST. LOUIS CITY IN EAST CENTRAL MISSOURI...
  ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 600 PM CDT

* AT 209 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED  
  AREA. RADAR INDICATES UP TO 3 INCHES OF RAIN HAVE ALREADY FALLEN   
  IN THE METRO AREA...WITH MORE ON THE WAY.  VERY QUICK RUNOFF CAN   
  BE EXPECTED IN URBAN AREAS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BALLWIN...BEL-RIDGE...BELLEFONTAINE NEIGHBORS...BERKELEY...BLACK
  JACK...BRENTWOOD...BRIDGETON...CHESTERFIELD...CLARKSON VALLEY...
  CLAYTON...COLLINSVILLE...COOL VALLEY...COTTLEVILLE...CREVE COEUR...
  DELLWOOD...DES PERES...EDWARDSVILLE...ELLISVILLE...FERGUSON...
  FLORISSANT...FRONTENAC...GLEN CARBON...GRANITE CITY...HAZELWOOD...
  HIGHLAND...HILLSDALE...JENNINGS...KINLOCH...LADUE AND LAMBERT
  FIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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 3866 8996 3866 9018 3848 9073 3863 9073
      3863 9075 3874 9076 3895 8968 3870 8962

$$

FUCHS
2 follow-up statements
969 
WGUS73 KLSX 022116
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
416 PM CDT WED APR 2 2014

ILC119-MOC183-189-510-022300-
/O.CON.KLSX.FF.W.0001.000000T0000Z-140402T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON IL-ST. CHARLES MO-ST. LOUIS MO-ST. LOUIS CITY MO-
416 PM CDT WED APR 2 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN ST. LOUIS
CITY...ST. LOUIS...CENTRAL ST. CHARLES AND MADISON COUNTIES UNTIL 600
PM CDT...

AT 406 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH 
FLOODING WAS OCCURRING IN NORTH ST. LOUIS CITY AND COUNTY.  
BELLEFONTAINE ROAD NEAR I-270 WAS FLOODED IN THE COUNTY.  IN THE 
CITY...A GOOD PORTION OF RIVERVIEW ROAD WAS FLOODED DUE TO A BLOCKED 
STORM SEWER.  ALSO...FEE FEE CREEK IN MARYLAND HEIGHTS ROSE TO AT 
LEAST TWO FEET ABOVE FLOOD STAGE.

SOME LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING INCLUDE...
BALLWIN...BEL-RIDGE...BELLEFONTAINE NEIGHBORS...BERKELEY...BLACK
JACK...BRENTWOOD...BRIDGETON...CHESTERFIELD...CLARKSON VALLEY...
CLAYTON...COLLINSVILLE...COOL VALLEY...COTTLEVILLE...CREVE COEUR...
DELLWOOD...DES PERES...EDWARDSVILLE...ELLISVILLE...FERGUSON...
FLORISSANT...FRONTENAC...GLEN CARBON...GRANITE CITY...HAZELWOOD...
HIGHLAND...HILLSDALE...JENNINGS...KINLOCH...LADUE AND LAMBERT FIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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 3866 8996 3866 9018 3848 9073 3863 9073
      3863 9075 3874 9076 3895 8968 3870 8962

$$

FUCHS
146 
WGUS73 KLSX 022258
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
558 PM CDT WED APR 2 2014

ILC119-MOC183-189-510-022310-
/O.EXP.KLSX.FF.W.0001.000000T0000Z-140402T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON IL-ST. CHARLES MO-ST. LOUIS MO-ST. LOUIS CITY MO-
558 PM CDT WED APR 2 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN ST. LOUIS
CITY...ST. LOUIS...CENTRAL ST. CHARLES AND MADISON COUNTIES WILL BE
ALLOWED TO EXPIRE AT 600 PM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA AND 
LITTLE ADDITIONAL RAINFALL IS EXPECTED EARLY THIS EVENING. STREAMS 
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO 
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3866 8996 3866 9018 3848 9073 3863 9073
      3863 9075 3874 9076 3895 8968 3870 8962

$$

GKS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 10:38 AM CDTSevere Thunderstorm WarningLSXMonroe52 min
Apr 2, 10:51 AM CDTAreal Flood AdvisoryLSXMacoupin, Madison, Monroe, Montgomery, Saint Clair26 days
Apr 2, 11:02 AM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair43 min
Apr 2, 12:55 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Clair50 min
Apr 2, 1:33 PM CDTSevere Thunderstorm WarningLSXMadison42 min
Apr 2, 3:07 PM CDTFlash Flood WatchLSXBond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more37 hr
Apr 2, 7:13 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway47 min
Apr 2, 7:44 AM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery46 min
Apr 2, 8:26 AM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery49 min
Apr 2, 8:50 AM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Warren40 min
Apr 2, 9:47 AM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade43 min
Apr 2, 10:15 AM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson45 min
Apr 2, 12:13 PM CDTAreal Flood AdvisoryLSXLincoln, Saint Charles, Warren3 hr
Apr 2, 3:18 PM CDTRiver Flood WarningLSXSaint Charles57 hr

Nearby

Flash Flood Warnings in Missouri, 2014Flash Flood Warnings in Illinois, 2014Every flash flood warning in 2014

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.