Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 16, NWS St. Louis, MO

June 12, 20034 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Jun 12, 2003, 6:55 PM CDT for 4 counties in 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 counties it named.

The facts

Issued
Jun 12, 2003, 6:55 PM CDT (23:55 UTC)
Expired
Jun 12, 2003, 10:30 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Audrain County, MO, Boone County, MO, Callaway County, MO, Monroe County, MO

The radar

The St Louis radar (KLSX), 125 km from the middle of the area, began a volume at 23:55 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, 11.9 hours before the alert went out and 293 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 2003-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 251 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, Springfield, MO at 12:00Z on 2003-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
251 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
759 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 122356
FFWLSX
MOC007-019-027-137-130330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
655 PM CDT THU JUN 12 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  AUDRAIN COUNTY IN CENTRAL MISSOURI
  BOONE COUNTY IN CENTRAL MISSOURI
  CALLAWAY COUNTY IN CENTRAL MISSOURI
  MONROE COUNTY IN NORTHEAST MISSOURI

* UNTIL 1030 PM CDT

* AT 650 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A 20 MILE
  WIDE BAND OF THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL EXTENDING
  FROM 10 MILES SOUTHWEST OF PARIS TO 10 MILES EAST OF MEXICO.  A
  SECOND BAND OF THUNDERSTORMS EXTENDED FROM ASHLAND TO FULTON.
  THESE STORMS WERE MOVING NORTH AROUND 20 MPH.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA AND WILL BE 
  AFFECTING FULTON...KINGDOM CITY...COLUMBIA...CENTRALIA...
  HALLSVILLE...HARRISBURG...MEXICO AND PARIS. 

RADAR ESTIMATES BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN IN THE 
PAST HOUR OVER SOUTHWESTERN MONROE...WESTERN AUDRAIN AND NORTHERN 
BOONE COUNTIES.  THESE STORMS WILL PRODUCE AN ADDITIONAL 1 TO 3 
INCHES OF RAIN IN SOME AREAS IN THE NEXT HOUR.

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

$$

BRITT
1 follow-up statement
000 
WGUS73 KLSX 130157
FFSLSX
MOC007-019-027-137-130330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
857 PM CDT THU JUN 12 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CALLAWAY...BOONE...
AUDRAIN AND MONROE COUNTIES UNTIL 1030 PM CDT...

AT 855 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WERE PRODUCING HEAVY RAIN OVER MONROE...NORTHERN BOONE 
AND WESTERN AUDRAIN COUNTIES. THESE STORMS WERE MOVING NORTH AT 
AROUND 20 MPH.   RADAR ESTIMATES THAT 2 TO 4 INCHES OF RAIN HAS 
FALLEN SINCE 4 PM IN AREAS NEAR HARRISBURG...HALLSVILLE... 
CENTRALIA...MIDDLE GROVE....MADISON...PARIS AND SANTA FE.

LAW ENFORCEMENT OFFICIALS REPORTED THAT 6 INCHES OF WATER COVERS 
PARTS OF HIGHWAY 151 NORTH AND SOUTH OF HIGHWAY 24 IN WESTERN MONROE 
COUNTY.  IN BOONE COUNTY...A FOOT OF WATER WAS REPORTED COVERING 
HIGWAY Z AND 6 INCHES OF WATER WAS OVER HIGHWAY K SOUTH OF 
COLUMBIA.   

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE WARNED 
AREA OVER THE NEXT HOUR.  THESE STORMS MAY PRODUCE AN ADDITIONAL 
INCH OF RAINFALL.

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.

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.

$$

BRITT

Nearby

Flash Flood Warnings in Missouri, 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.