Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 67, NWS Austin/San Antonio, TX

July 23, 2003Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 23, 2003, 4:44 PM CDT for Val Verde County, Texas. It was in force for 2 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
Jul 23, 2003, 4:44 PM CDT (21:44 UTC)
Expired
Jul 23, 2003, 6:45 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Val Verde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 9.7 hours before the alert went out and 65 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, Del Rio, TX at 12:00Z on 2003-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3092 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, Del Rio, TX at 12:00Z on 2003-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.1939Sfc1 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
3092 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
38 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 
WGUS54 KEWX 232147 CCA
FFWSAT
TXC465-232345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
444 PM CDT WED JUL 23 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  VAL VERDE

* UNTIL 645 PM CDT

* AT 444 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A VERY HEAVY
THUNDERSTORM CELL ABOUT 5 MILES WEST OF JUNO MOVING LITTLE. RAINFALL 
RATES OF NEAR 2 INCHES PER HOU WERE INDICATED IN THIS STORM.  

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LAT...LON 3002 10108 2989 10094 2964 10114 2994 10140

$$
1 follow-up statement
000 
WGUS74 KEWX 232214
FFSSAT
TXC465-232315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
515 PM CDT WED JUL 23 2003

...A FLASH FLOOD WARNING CONTINUES FOR VAL VERDE COUNTY UNTIL 645 PM
CDT...

AT 510 PM RADAR INDICATED VERY HEAVY RAINS CONTINUED JUST WEST OF 
JUNO AND EXTENDED NORTHWEST TO NEAR PANDALE. RAINFALL RATES OF UP TO 
2 INCHES AN HOUR WERE OCCURRING WITHIN THESE STORMS. LITTLE MOVEMENT 
WAS NOTED ON THE STORM CELL JUST NORTHWEST OF PANDALE.  

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS..COUNTRY ROADS..NORMALLY DRY WASHES AND
ARROYOS..AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST
WEATHER INFORMATION.

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 11:24 AM CDTSevere Thunderstorm WarningEWXLee51 min
Jul 23, 12:05 PM CDTSevere Thunderstorm WarningEWXBastrop40 min
Jul 23, 1:26 PM CDTSevere Thunderstorm WarningEWXBlanco64 min
Jul 23, 2:03 PM CDTSevere Thunderstorm WarningEWXGillespie57 min
Jul 23, 2:39 PM CDTSevere Thunderstorm WarningEWXKendall51 min
Jul 23, 3:09 PM CDTSevere Thunderstorm WarningEWXBandera66 min
Jul 23, 3:18 PM CDTSevere Thunderstorm WarningEWXReal57 min
Jul 23, 4:51 PM CDTSevere Thunderstorm WarningEWXKinney, Uvalde54 min

Nearby

Flash Flood Warnings in Texas, 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.