Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 169, NWS Austin/San Antonio, TX

July 16, 20024 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 16, 2002, 8:40 AM CDT for 4 counties in Texas. 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
Jul 16, 2002, 8:40 AM CDT (13:40 UTC)
Expired
Jul 16, 2002, 12:30 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties DeWitt County, TX, Fayette County, TX, Gonzales County, TX, Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 1.7 hours before the alert went out and 198 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, Corpus Christi, TX at 12:00Z on 2002-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2002-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
78 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
585 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
35 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 161340
FFWSAT
TXC123-149-177-285-161730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
840 AM CDT TUE JUL 16 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  FAYETTE
  GONZALES
  LAVACA
  DEWITT

* UNTIL 1230 PM CDT

* AT 835 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  TRAINING NORTHWARD FROM THE COASTAL PLAINS INTO LAVACA AND DEWITT 
  COUNTIES...CONTINUING INTO GONZALES AND FAYETTE COUNTIES.  

NUMEROUS SHOWERS AND THUNDERSTORMS WITH HEAVY RAINS WILL PRODUCE 
WIDESPREAD AMOUNTS OF ONE TO TWO INCHES WITH ISOLATED AMOUNTS OF 2 
TO 4 INCHES
POSSIBLE OVER THE NEXT TWO TO THREE HOURS.   

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT 
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS 
THE ROADWAY. 

LAT...LON 2949 9748 2893 9752 2895 9730 2934 9667
          2967 9692 2997 9663 3015 9679
2 follow-up statements
000 
WGUS74 KEWX 161530
FFSSAT
TXC123-149-177-285-161730-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1026 AM CDT TUE JUL 16 2002

...A FLASH FLOOD WARNING CONTINUES FOR FAYETTE...GONZALES...LAVACA
AND DEWITT COUNTIES UNTIL 1230 PM CDT...

WIDESPREAD RAINFALL RATES NEAR ONE INCH AN HOUR CONTINUE ACROSS THE 
EASTERN SECTIONS OF SOUTH CENTRAL TEXAS WITH SHOWERS AND 
THUNDERSTORMS TRAINING ACROSS THE AREA.  ADDITIONAL AMOUMTS OF ONE 
TO TWO INCHES ARE POSSIBLE OVER THE NEXT TWO TO THREE HOURS.  

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.
000 
WGUS74 KEWX 161732
FFSSAT
TXC123-149-177-285-161810-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1231 PM CDT TUE JUL 16 2002

...THE FLASH FLOOD WARNING FOR FAYETTE...GONZALES...LAVACA AND DEWITT
COUNTIES HAS BEEN ALLOWED TO EXPIRE...

NATIONAL WEATHER SERVICE RADAR INDICATED THE HEAVY RAINFALL HAS 
ENDED AND ONLY SCATTERED LIGHT RAIN CONTINUED.  THE FLOOD THREAT 
HAS DIMINISHED...HOWEVER SOME MINOR FLOODING MAY CONTINUE...BUT THE 
THREAT OF SERIOUS FLOODING HAS ENDED AND THE FLASH FLOOD WARNING HAS 
EXPIRED.

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 15, 7:11 PM CDTFlash Flood WarningEWXAtascosa2 hr
Jul 16, 11:12 AM CDTFlash Flood WarningEWXComal, Hays108 min
Jul 16, 12:42 PM CDTFlash Flood WarningEWXBandera, Comal, Kendall, Kerr3 hr
Jul 16, 12:43 PM CDTFlash Flood WarningEWXBandera, Comal, Kendall, Kerr3 hr
Jul 16, 4:14 PM CDTFlash Flood WarningEWXBlanco2 hr
Jul 16, 4:35 PM CDTFlash Flood WarningEWXReal100 min
Jul 16, 4:47 PM CDTFlash Flood WarningEWXDeWitt, Karnes103 min
Jul 16, 5:23 PM CDTFlash Flood WarningEWXBurnet2 hr
Jul 16, 5:37 PM CDTFlash Flood WarningEWXAtascosa113 min
Jul 16, 5:51 PM CDTFlash Flood WarningEWXBexar, Wilson3 hr
Jul 16, 6:20 PM CDTFlash Flood WarningEWXFayette, Lee3 hr
Jul 16, 6:33 PM CDTFlash Flood WarningEWXGuadalupe3 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.