Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 159, NWS Austin/San Antonio, TX

July 14, 2002Atascosa County, Karnes County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 14, 2002, 8:56 PM CDT for Atascosa County, Karnes 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 14, 2002, 8:56 PM CDT (01:56 UTC)
Expired
Jul 14, 2002, 11:00 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Atascosa County, TX, Karnes County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.9 hours before the alert went out and 155 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 00:00Z on 2002-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2181 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, Corpus Christi, TX at 00:00Z on 2002-07-15The 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
2181 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1136 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
6 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 150156
FFWSAT
TXC013-255-150400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CDT SUN JUL 14 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  ATASCOSA
  KARNES

* UNTIL 1100 PM CDT

* AT 854 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  15 MILES SOUTH OF JOURDANTON TO CAMPBELLTON TO KARNES CITY...HELENA
  AND KENEDY...MOVING SLOWLY NORTH AT 5 MPH.  RAINFALL RATES OF 1 TO
  3 INCHES PER HOUR WERE NOTED.  GUSTY WINDS CAN ALSO BE EXPECTED.

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.

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 2896 9862 2864 9872 2865 9825 2877 9771
          2914 9782 2886 9817

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 7:07 PM CDTFlash Flood WarningEWXMaverick, Zavala53 min
Jul 14, 7:19 PM CDTFlash Flood WarningEWXFrio, Karnes101 min
Jul 15, 8:30 AM CDTFlash Flood WarningEWXFrio3 hr
Jul 15, 8:40 AM CDTFlash Flood WarningEWXFayette, Lavaca3 hr
Jul 15, 10:09 AM CDTFlash Flood WarningEWXBandera, Comal, Kendall2 hr
Jul 15, 12:15 PM CDTFlash Flood WarningEWXDimmit, Maverick, Zavala105 min
Jul 15, 12:33 PM CDTFlash Flood WarningEWXFrio87 min
Jul 15, 12:37 PM CDTFlash Flood WarningEWXDeWitt, Karnes83 min
Jul 15, 1:41 PM CDTFlash Flood WarningEWXDimmit, Frio, Maverick, Zavala3 hr
Jul 15, 6:31 PM CDTFlash Flood WarningEWXWilliamson119 min

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.