Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 251, NWS Austin/San Antonio, TX

October 24, 2002Dimmit County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 24, 2002, 9:53 AM CDT for Dimmit County, Zavala County, Texas. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 24, 2002, 9:53 AM CDT (14:53 UTC)
Expired
Oct 24, 2002, 11:45 AM CDT
In force
112 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Dimmit County, TX, Zavala County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 2.9 hours before the alert went out and 132 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 2002-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2002-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 213 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 241453
FFWSAT
TXC127-507-241645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
951 AM CDT THU OCT 24 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  ZAVALA
  DIMMIT

* UNTIL 1145 AM CDT

* AT 951 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  FROM LA PRYOR AND BATESVILLE TO 20 MILES SOUTHWEST OF CARRIZO 
  SPRINGS AND 20 MILES WEST OF CATARINA...MOVING NORTHEAST AT 20 MPH.

RAINFALL RATES OF 1 TO INCHES WERE NOTED.  STRONG WINDS AND SMALL 
HAIL MAY ALSO BE EXPECTED WITH A STORM OVER FAR SOUTHERN DIMMIT 
COUNTY AS WELL.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK 
HIGHER GROUND. LAT...LON 2824 10009 2824 9946 2908 9946 2906 10007

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 4:09 AM CDTFlash Flood WarningEWXEdwards, Kinney, Maverick, Real, Uvalde4 hr
Oct 24, 5:44 AM CDTFlash Flood WarningEWXZavala2 hr
Oct 24, 5:52 AM CDTFlash Flood WarningEWXBexar, Medina4 hr
Oct 24, 7:44 AM CDTFlash Flood WarningEWXEdwards, Kinney, Maverick, Real, Uvalde, Val Verde4 hr
Oct 24, 9:23 AM CDTFlash Flood WarningEWXAtascosa, Bandera, Bexar, Comal, Frio, Kendall and 2 more3 hr
Oct 24, 11:00 AM CDTFlash Flood WarningEWXCaldwell, Gonzales, Guadalupe, Karnes, Wilson3 hr
Oct 24, 11:28 AM CDTFlash Flood WarningEWXDimmit, Real, Uvalde, Zavala62 min
Oct 24, 12:09 PM CDTFlash Flood WarningEWXAtascosa, Bandera, Bexar, Blanco, Comal, Frio and 5 more111 min
Oct 24, 12:36 PM CDTFlash Flood WarningEWXDeWitt, Lavaca84 min
Oct 24, 1:10 PM CDTFlash Flood WarningEWXBastrop, Fayette, Travis3 hr
Oct 24, 1:52 PM CDTFlash Flood WarningEWXBexar, Comal, Guadalupe2 hr
Oct 24, 2:00 PM CDTFlash Flood WarningEWXDeWitt, Gonzales, Karnes, Lavaca, Wilson2 hr

Nearby

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

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.