Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 6, NWS St. Louis, MO

May 1, 2004Crawford County, Missouri

NWS St. Louis, MO issued this flash flood warning at May 1, 2004, 2:23 AM CDT for Crawford County, Missouri. It was in force for 6 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
May 1, 2004, 2:23 AM CDT (07:23 UTC)
Expired
May 1, 2004, 8:30 AM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Counties, with a storm outline in the text

County Crawford County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.4 hours before the alert went out and 255 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 00:00Z on 2004-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 954 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2004-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 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
954 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1102 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 010729
FFWLSX
MOC055-011330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
223 AM CDT SAT MAY 1 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 830 AM CDT

* AT 223 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS PRODUCING VERY HEAVY RAIN IN THE SOUTHERN PORTION OF
CRAWFORD COUNTY NEAR HIGHWAYS 19 AND 49.
 
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE   
AFFECTING THE COMMUNITIES OF CHERRYVILLE COOK STATION AND DILLARD
AS WELL AS CROOKED CREEK...YANKEE CREEK...DRY CREEK...AND OTHER
SMALLER STREAMS AND TRIBUTARIES. LOW WATER BRIDGES THROUGHOUT 
THE COUNTY WILL BECOME IMPASSABLE RAPIDLY TONIGHT  DO NOT TRY
TO DRIVE THROUGH THEM. 

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

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3819 9111 3770 9115 3779 9150 3820 9153

$$
PEDIGO
2 follow-up statements
000 
WGUS73 KLSX 011048
FFSLSX
MOC055-011330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
545 AM CDT SAT MAY 1 2004

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CRAWFORD COUNTY UNTIL
830 AM CDT...

AT 530 AM CDT...WEATHER SERVICE DOPPLER RADAR WAS SHOWING MOST OF 
THE HEAVY RAIN MOVING OFF TO THE EAST OF CRAWFORD COUNTY.  THERE 
WERE MORE LIGHT RAIN SHOWERS MOVING INTO THE AREA.  RADAR 
PRECIPITATION ESTIMATES SHOWED THAT UP TO 3 INCHES OF RAIN FELL 
BETWEEN DILLARD AND CHERRYVILLE.  THE REMAINDER OF SOUTHERN CRAWFORD 
COUNTY RECEIVED 1 TO 2 INCHES.  THE COMMUNITIES OF COOK 
STATION...CHERRYVILLE...DAVISVILLE AND DILLARD WOULD HAVE RECIEVED 
THE MOST RAIN.  AREAS AROUND CROOKED CREEK...YANKEE CREEK...DRY 
CREEK...AND THE NORTHERN PORTIONS OF HUZZAH CREEK AND COURTOIS CREEK 
WOULD BE MOST IMPACTED.  EVEN IF THERE IS NO FLOODING OCCURING AT 
THIS TIME...IT IS STILL POSSIBLE THAT THE EXCESS RUNOFF IS STILL 
MAKING ITS WAY DOWNSTREAM AND COULD STILL CAUSE SIGNIFICANT FLASH 
FLOODING AS IT PASSES.

LOW WATER CROSSINGS MAY BE ESPECIALLY DANGEROUS THIS MORNING.   IF 
YOU DO APPROACH A LOW WATER CROSSING THAT CONTAINS FAST FLOWING 
WATER...TURN AROUND AND FIND ANOTHER ROUTE TO YOUR DESTINATION.   
OVER THE PAST FEW YEARS MANY OF THE FLOODING DEATHS IN SOUTHERN 
MISOURI HAVE BEEN DUE TO MOTORISTS ATTEMPTING TO DRIVE THROUGH 
FLOODED LOW WATER CROSSINGS.  DO NOT BECOME A STATISTIC 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

$$

CARNEY
000 
WGUS73 KLSX 011250
FFSLSX
MOC055-011315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
750 AM CDT SAT MAY 1 2004

...FLASH FLOOD WARNING FOR CRAWFORD COUNTY HAS BEEN CANCELLED...

THE THUNDERSTORMS WHICH PRODUCED THE HEAVY RAIN HAVE MOVED EAST OF 
THE AREA.  THERE WILL BE ADDITIONAL RAIN TODAY...BUT IT WILL ONLY BE 
LIGHT SHOWERS...AND ADDITIONAL RAINFALL ACCUMULATIONS WILL AMOUNT TO 
LESS THAN 0.10 INCH.

DRIVERS SHOULD REMAIN ALERT AT LOW WATER CROSSINGS THIS MORNING AS 
THE RUNOFF FROM LAST NIGHTS STORM MAY STILL BE CAUSING SOME HIGH 
WATER.  NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE 
ROAD TO AN UNKNOWN DEPTH.  MOST WATER RELATED FATALITIES OCCUR WHEN 
PEOPLE DRIVE THEIR CARS ACROSS WATER COVERED ROADS AND ARE SWEPT 
AWAY.  DO NOT BECOME A STATISTIC

$$

CARNEY

Nearby

Flash Flood Warnings in Missouri, 2004Every flash flood warning in 2004

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.