Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS St. Louis, MO

June 10, 20035 counties in Missouri; Madison County, Saint Clair County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 10, 2003, 6:27 PM CDT for 5 counties in Missouri; Madison County, Saint Clair 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 counties it named.

The facts

Issued
Jun 10, 2003, 6:27 PM CDT (23:27 UTC)
Expired
Jun 10, 2003, 10:30 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Madison County, IL, Saint Clair County, IL, City of Saint Louis, MO, Franklin County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 23:30 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

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 233 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 2003-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 77 joules per kilogram.LCLLFCEL10008507005003002001001 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 2003-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
77 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1451 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
63 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 102331
FFWLSX
ILC119-163-MOC071-183-189-219-510-110330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
627 PM CDT TUE JUN 10 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 1030 PM CDT

* WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS THAT
  HAD PRODUCED VERY HEAVY RAINFALL ACROSS THE ST LOUIS METROPOLITAN
  AREA.  RADAR ESTIMATES RAINFALL TOTALS OF 2 TO 5 INCHES...WHICH
  SPOTTERS REPORT HAVE RESULTED IN NUMEROUS STREET FLOODS.  THESE 
  VERY HEAVY RAIN PRODUCTING THUNDERSTORMS CONTINUE TO EXPAND 
  SOUTHEASTWARD.

* RAIN WILL GRADUALLY SUBSIDE ACROSS THE AREA THIS EVENING.  
  FLOODING...AT LOCALIZED SITES...CAN BE EXPECTED THROUGHOUT THE 
  WARNING AREA.

IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER
GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD.

$$

TES
1 follow-up statement
000 
WGUS73 KLSX 110136
FFSLSX
ILC119-163-MOC071-183-189-219-510-110330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
830 PM CDT TUE JUN 10 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR ST. CLAIR...MADISON...
ST. LOUIS CITY...ST. LOUIS...ST. CHARLES AND WARREN COUNTIES UNTIL 
1030 PM CDT...

WEATHER SERVICE DOPPLER RADAR ESTIMATED TWO TO THREE INCHES OF 
RAINFALL HAD FALLEN ACROSS THE WARNING AREA...ESPECIALLY NEAR THE 
INTERSTATE 70 CORRIDOR IN WARREN...ST CHARLES...ST LOUIS AND MADISON 
COUNTIES...WITH OTHER SMALLER POCKETS OF HEAVY RAINFALL OCCURRING IN 
ST CLAIR COUNTY NEAR SMITHTON AS WELL AS IN THE CITY OF ST LOUIS.

THERE WERE NO REPORTS OF FLOODING IN FRANKLIN COUNTY...AND WITH 
LESSER AMOUNTS OF RAINFALL INDICATED BY RADAR...THE FLASH FLOOD 
WARNING HAS BEEN CANCELLED.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. AVOID BRIDGES...DIPS...
OR OTHER LOW LYING AREAS...AND NEVER 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. VEHICLES CAUGHT IN RISING WATER
SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

$$

TES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 5:12 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Moniteau, Osage48 min
Jun 10, 3:32 PM CDTSevere Thunderstorm WarningLSXCole, Osage43 min
Jun 10, 3:52 PM CDTSevere Thunderstorm WarningLSXCallaway38 min
Jun 10, 4:13 PM CDTSevere Thunderstorm WarningLSXGasconade47 min
Jun 10, 4:17 PM CDTSevere Thunderstorm WarningLSXMontgomery, Osage43 min
Jun 10, 4:31 PM CDTSevere Thunderstorm WarningLSXCrawford44 min
Jun 10, 4:37 PM CDTSevere Thunderstorm WarningLSXWarren38 min
Jun 10, 4:37 PM CDTTornado WarningLSXCrawford38 min
Jun 10, 4:58 PM CDTSevere Thunderstorm WarningLSXWashington62 min
Jun 10, 5:01 PM CDTSevere Thunderstorm WarningLSXSaint Charles44 min
Jun 10, 5:12 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Francois48 min
Jun 10, 5:27 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis48 min
Jun 10, 5:48 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve42 min
Jun 10, 5:50 PM CDTSevere Thunderstorm WarningLSXMadison40 min
Jun 10, 5:52 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair38 min
Jun 10, 6:03 PM CDTSevere Thunderstorm WarningLSXRandolph42 min
Jun 10, 6:07 PM CDTTornado WarningLSXMonroe, Randolph, Saint Clair38 min
Jun 10, 6:13 PM CDTTornado WarningLSXClinton, Saint Clair47 min
Jun 10, 6:18 PM CDTSevere Thunderstorm WarningLSXWashington42 min
Jun 10, 6:29 PM CDTTornado WarningLSXClinton, Marion46 min

Nearby

Flash Flood Warnings in Missouri, 2003Flash Flood Warnings in Illinois, 2003Every flash flood warning in 2003

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.