Alert archive / Missouri / Flash Flood Warnings in 2008

Flash Flood Warning 19, NWS St. Louis, MO

April 3, 20086 counties in Missouri; Randolph County, Illinois

NWS St. Louis, MO issued this flash flood warning at Apr 3, 2008, 6:33 PM CDT for 6 counties in Missouri; Randolph County, Illinois. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 3, 2008, 6:33 PM CDT (23:33 UTC)
Expired
Apr 3, 2008, 10:30 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Randolph County, IL, Iron 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), 122 km from the middle of the area, began a volume at 23:34 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 298 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, Springfield, MO at 12:00Z on 2008-04-03Temperature 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, Springfield, MO at 12:00Z on 2008-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 264 square meters per square second.1939587897117Sfc1 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
492 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
264 m²/s²
0-3 km storm-relative helicity
245 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.

000 
WGUS53 KLSX 032347
FFWLSX
ILC157-MOC093-123-179-186-187-221-040330-
/O.NEW.KLSX.FF.W.0019.080403T2333Z-080404T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
646 PM CDT THU APR 3 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI
  IRON COUNTY IN SOUTHEAST MISSOURI
  MADISON COUNTY IN SOUTHEAST MISSOURI
  REYNOLDS COUNTY IN SOUTHEAST MISSOURI
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI
  STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI
  RANDOLPH COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 1030 PM CDT

* AT 645 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE LEADING EDGE OF A LARGE COMPLEX OF SHOWERS AND THUNDERSTORMS
  EXTENDING FROM IRON COUNTY SOUTHWESTWARD INTO NORTHERN ARKANSAS.
  IN ADDITION...SCATTERED THUNDERSTORMS WERE FOUND AHEAD OF THIS
  COMPLEX OVER STE GENEVIEVE AND AND RANDOLPH COUNTIES. MODERATE TO
  OCCASIONALLY HEAVY RAINFALL CAN BE EXPECTED WITH THIS COMPLEX AS
  IT SPREADS NORTHEASTWARD THE NEXT FEW HOURS.  THE THUNDERSTORMS
  WILL PRODUCE BRIEF...YET INTENSE RAINFALL RATES BETWEEN 1 AND 2
  INCHES AN HOUR OVER GROUND THAT IS SATURATED...CAUSING IMMEDIATE
  RUN OFF THAT WILL LIKELY PRODUCE FLASH FLOODING.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING TILDEN...STEELEVILLE...SPARTA...PERCY...EVANSVILLE...
  COULTERVILLE...CHESTER...BREMEN...BALDWIN...WOMAC...WEINGARTEN...
  VIBURNUM...STE. GENEVIEVE...ST. MARY...ROSELLE...ROCKY RIDGE...
  PILOT KNOB...PARK HILLS...OATES...LEADWOOD...KNOB LICK...JUNCTION
  CITY...IRONTON...IRONDALE...IRON MOUNTAIN...FREDERICKTOWN...
  FARMINGTON...DESLOGE...COFFMAN...BONNE TERRE...BLOOMSDALE...
  BIXBY...BISMARCK...BELLEVIEW AND ARCADIA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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. MOVE TO HIGHER GROUND.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.

LAT...LON 3721 9115 3749 9123 3750 9132 3757 9133
      3760 9118 3772 9116 3774 9111 3807 9024
      3822 8981 3821 8960 3794 8960 3782 8967
      3789 8984 3787 8993 3765 9014 3732 9014
      3731 9054 3727 9073 3706 9078 3705 9097
TIME...MOT...LOC 2333Z 180DEG 0KT 3751 9083

$$

BRITT
1 follow-up statement
000 
WGUS73 KLSX 040207
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
903 PM CDT THU APR 3 2008

ILC157-MOC093-123-179-186-187-221-040330-
/O.CON.KLSX.FF.W.0019.000000T0000Z-080404T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RANDOLPH IL-REYNOLDS MO-MADISON MO-IRON MO-ST. FRANCOIS MO-
STE. GENEVIEVE MO-WASHINGTON MO-
903 PM CDT THU APR 3 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHERN WASHINGTON...STE. GENEVIEVE...ST. FRANCOIS...IRON...
MADISON...REYNOLDS AND RANDOLPH COUNTIES...

AT 900 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE ACTIVITY HAS DIMINISHED OVER THE PAST HOUR. HOWEVER... 
ADDITIONAL SHOWERS AND THUNDERSTORMS OVER SOUTHWESTERN MISSOURI 
CONTINUE TO MOVE TO THE NORTHEAST THIS EVENING AND WILL AFFECT 
REYNOLDS...IRON AND MADISON IN THE NEXT HOUR OR SO.

NO REPORTS OF FLOODING HAVE BEEN RECEIVED SO FAR...BUT ANY 
ADDITIONAL RAINFALL COULD CAUSE FLASH FLOODING IN THIS AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TILDEN...
STEELEVILLE...SPARTA...PERCY...EVANSVILLE...COULTERVILLE...CHESTER...
BREMEN...BALDWIN...WOMAC...WEINGARTEN...VIBURNUM...STE. GENEVIEVE...
ST. MARY...ROSELLE...ROCKY RIDGE...PILOT KNOB...PARK HILLS...OATES...
LEADWOOD...KNOB LICK...JUNCTION CITY...IRONTON...IRONDALE...IRON
MOUNTAIN...FREDERICKTOWN...FARMINGTON...DESLOGE...COFFMAN...BONNE
TERRE...BLOOMSDALE...BIXBY...BISMARCK...BELLEVIEW AND ARCADIA.

ADDITIONAL RAINFALL AMOUNTS OF HALF AN INCH TO AN INCH ARE STILL 
POSSIBLE IN THE WARNED AREA.

LAT...LON 3721 9115 3749 9123 3750 9132 3757 9133
      3760 9118 3772 9116 3774 9111 3807 9024
      3822 8981 3821 8960 3794 8960 3782 8967
      3789 8984 3787 8993 3765 9014 3732 9014
      3731 9054 3727 9073 3706 9078 3705 9097
TIME...MOT...LOC 0203Z 180DEG 0KT 3751 9083

$$

BYRD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 8:51 AM CDTRiver Flood WarningLSXOsage27 hr
Apr 3, 10:07 AM CDTRiver Flood WarningLSXReynolds46 hr
Apr 3, 11:48 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Moniteau, Osage42 min
Apr 3, 12:16 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway, Moniteau44 min
Apr 3, 12:30 PM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Franklin, Gasconade, Montgomery, Osage and 1 more45 min
Apr 3, 12:35 PM CDTSevere Thunderstorm WarningLSXCrawford, Iron, Washington23 min
Apr 3, 12:46 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds23 min
Apr 3, 5:23 PM CDTSevere Thunderstorm WarningLSXClinton, Saint Clair, Washington37 min

Nearby

Flash Flood Warnings in Missouri, 2008Flash Flood Warnings in Illinois, 2008Every flash flood warning in 2008

Sources

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