Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 162, NWS Austin/San Antonio, TX

July 15, 2002Bandera County, Comal County, Kendall County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 15, 2002, 10:09 AM CDT for Bandera County, Comal County, Kendall 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 15, 2002, 10:09 AM CDT (15:09 UTC)
Expired
Jul 15, 2002, 12:30 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bandera County, TX, Comal County, TX, Kendall County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 3.2 hours before the alert went out and 196 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 2002-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 401 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 2002-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
401 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
41 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 151509
FFWSAT
TXC019-091-259-151730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1007 AM CDT MON JUL 15 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  KENDALL
  COMAL
  BANDERA

* UNTIL 1230 PM CDT TODAY

* AT 1007 AM...WEATHER SERVICE DOPPLER RADAR INDICATED AREAS
OF RAIN...HEAVY AT TIMES...OVER PARTS OF COMAL...KENDALL...
AND BANDERA COUNTIES.  THESE SHOWERS AND THUNDERSTORMS WILL
CONTINUE THE NEXT FEW HOURS OVER PARTS OF COMAL...KENDALL...
AND BANDERA COUNTIES.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

DO NOT 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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

LAT...LON 2971 9954 2970 9899 2988 9874 2995 9862
          2977 9831 2998 9828 2999 9851 3007 9863
          3012 9892 2984 9888 2977 9893 2989 9912
          2988 9960

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 14, 8:56 PM CDTFlash Flood WarningEWXAtascosa, Karnes2 hr
Jul 15, 8:30 AM CDTFlash Flood WarningEWXFrio3 hr
Jul 15, 8:40 AM CDTFlash Flood WarningEWXFayette, Lavaca3 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.