Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 7, NWS St. Louis, MO

May 19, 2004Callaway County, Montgomery County, Missouri

NWS St. Louis, MO issued this flash flood warning at May 19, 2004, 3:20 AM CDT for Callaway County, Montgomery County, Missouri. 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: May 19, 2004, 3:20 AM CDT (08:20 UTC)
Expired: May 19, 2004, 7:15 AM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Callaway County, MO, Montgomery County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.3 hours before the alert went out and 279 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1439 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 317 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 190820
FFWLSX
MOC027-139-191215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
320 AM CDT WED MAY 19 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALLAWAY COUNTY IN CENTRAL MISSOURI
  MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 715 AM CDT

* AT 313 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN IN AND AROUND INTERSTATE 
  70 IN CALLAWAY AND MONTGOMERY COUNTIES.   RADAR ESTIMATED THAT 1
  TO 3 INCHES OF RAIN FELL IN SOME AREAS SINCE 1 AM.  THE MONTGOMERY
  COUNTY SHERIFFS DEPARTMENT REPORTED 6 INCHES OF WATER OVER HIGHWAY
  161 AT THE ELKHORN CREEK BRIDGE.  6 TO 8 INCHES OF WATER ALSO
  COVERED HIGHWAY 19 IN MONTGOMERY CITY.   

  ALTHOUGH THE HEAVY RAINS IN THESE AREAS WILL TAPER OFF BETWEEN
  4 AND 430 AM...RUNOFF FROM THE DOWNPOURS WILL CONTINUE THE
  FLOODING THREAT UNTIL AFTER SUNRISE.  
  
* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING THE MONTGOMERY CITY...SHAMROCK...AND WELLSVILLE AREAS.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE
ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS...
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

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 3862 9224 3880 9214 3906 9213 3908 9164
          3914 9159 3914 9127 3885 9128 3885 9143
          3872 9143 3866 9187 3854 9206

$$

TRUETT/BRITT

1 follow-up statement

000 
WGUS73 KLSX 191059
FFSLSX
MOC027-139-191215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
600 AM CDT WED MAY 19 2004

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CALLAWAY AND
MONTGOMERY COUNTIES UNTIL 715 AM CDT...

AT 600 AM...WEATHER SERVICE DOPPLER RADAR SHOWED THE THUNDERSTORMS 
WHICH PROMPTED THE FLASH FLOOD WARNING HAD MOVED OFF TO THE 
SOUTHEAST OF MONTGOMERY AND CALLAWAY COUNTIES.  THE MONTGOMERY 
COUNTY SHERIFFS DEPARTMENT REPORTED THAT HIGHWAY 19 IN MONTGOMERY 
CITY AND THE ELKHORN CREEK BRIDGE ON HIGHWAY 161 HAD CLEARED OFF AT 
THIS TIME.  HOWEVER...THE FLASH FLOOD WARNING WILL REMAIN IN EFFECT 
FOR THE TIME BEING SINCE RUNOFF CONTINUES TO FLOW INTO AREA CREEKS 
AND STREAMS AND COULD CAUSE ADDITIONAL FLOODING PROBLEMS THIS 
MORNING.

REMEMBER...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.

$$

CARNEY

Nearby

Flash Flood Warnings in Missouri, 2004 Every 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.