Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 66, NWS Austin/San Antonio, TX

July 2, 200213 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 2, 2002, 12:00 PM CDT for 13 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 2, 2002, 12:00 PM CDT (17:00 UTC)
Expired
Jul 2, 2002, 4:00 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bandera County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Comal County, TX, Gillespie County, TX, Guadalupe County, TX, Kendall County, TX, Kerr County, TX, Llano County, TX, Medina County, TX, Real County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 81 km from the middle of the area, began a volume at 17:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 5.0 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 2002-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1923 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, Del Rio, TX at 12:00Z on 2002-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
1923 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 021700
FFWSAT
TXC019-029-031-053-091-171-187-259-265-299-325-385-493-022100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1156 AM CDT TUE JUL 2 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  BURNET
  LLANO
  GILLESPIE
  BLANCO
  KERR
  KENDALL
  REAL
  COMAL
  BANDERA
  GUADALUPE
  BEXAR
  MEDINA
  WILSON

* UNTIL 400 PM CDT

* AT 1156 AM...WEATHER SERVICE DOPPLER RADAR INDICATED MAINLY LIGHT
  TO MODERATE RAINFALL ACROSS THE HILL COUNTRY TO THE SAN ANTONIO 
  METROPOLITAN AREA.

RAINFALL RATES ARE ONLY ABOUT ONE-HALF INCH PER 
HOUR...HOWEVER...PREVIOUS MUCH HEAVIER RAINFALL AND ADDITIONAL
SHOWER AND THUNDERSTORM DEVELOPMENT WILL KEEP FLASH FLOODING GOING
THROUGH THIS AFTERNOON.  

NUMEROUS CREEKS AND RIVERS ARE RUNNING IN FLOOD AND WILL CONTINUE 
OVER THE NEXT FEW HOURS.  

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.

LAT...LON 2969 10003 2969 9938 2913 9938 2911 9883
          2934 9886 2917 9846 2893 9817 2966 9770
          2982 9791 2972 9802 3006 9838 3097 9791
          3093 9895 3028 9899 3009 9970 2990 10001
2 follow-up statements
000 
WGUS74 KEWX 021837
FFSSAT
TXC019-029-031-053-055-091-123-137-171-177-187-209-255-259-265-271-
285-299-325-385-453-463-491-493-021930-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
135 PM CDT TUE JUL 2 2002

...FLASH FLOOD WARNINGS ARE IN EFFECT THROUGH 4 PM CDT FOR UVALDE, 
REAL, EDWARDS, MEDINA, BANDERA, KERR, BEXAR, KENDALL, GILLESPIE, 
LLANO, BURNET, BLANCO, HAYS, COMAL, GUADALUPE, WILSON, KARNES, 
DEWITT, GONZALES, CALDWELL, TRAVIS, WILLIAMSON, BASTROP, FAYETTE, 
AND LAVACA COUNTIES...

A BAND OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINFALL RATES 
OF 2 TO 3.5 INCHES PER HOUR CONTINUED FROM TEMPLE TO AUSTIN TO 
GONZALES TO KARNES CITY, CUERO, AND GOLIAD.  THE RAINS WERE MOVING 
NORTH AT 20 MPH AND WILL AGGRAVATE ONGOING FLOOD PROBLEMS AS THEY 
TRAIN OVER THE SAME AREAS.   

ELSEWHERE, A STATIONARY DECREASING AREA OF RAIN CONTINUED ACROSS THE 
HILL COUNTY AND SOUTH CENTRAL TEXAS.  EVEN THROUGH RAINFALL RATES 
WERE LESS THAN ONE-HALF INCH PER HOUR, FLOOD PROBLEMS CONTINUED.  
ALSO...SHOWERS AND THUNDERSTORMS WERE REDEVELOPING OVER FAR SOUTHERN 
TEXAS AND THESE WILL MOVE INTO THIS AREA .  

NUMEROUS RIVERS AND CREEKS ACROSS THE HILL COUNTRY AND SOUTH CENTRAL 
TEXAS WERE ALREADY IN FLOOD OR WERE RAPIDLY APPROACHING FLOOD WITH 
RIVER FLOOD WARNINGS ISSUED.  ALSO...WIDESPREAD ROAD CLOSURES 
CONTINUED.  

AREAS OF RAIN AND THUNDERSTORMS WILL CONTINUE THROUGH THE AFTERNOON 
HOURS.  ADDITIONAL RAINFALL AMOUNTS THROUGH LATE AFTERNOON WILL 
AVERAGE 2 TO 5 INCHES WITH ISOLATED AMOUNTS OF 7 TO 10 INCHES.  SOME 
RAINFALL RATES COULD APPROACH 5 INCHES PER HOUR.  THESE TORRENTIAL 
RAINS WILL EXACERBATE ALREADY FLOODED CONDITIONS. 

THIS IS A DANGEROUS LIFE THREATENING SITUATION.  PERSONS ARE ADVISED 
TO TRAVEL ONLY WHEN ABSOLUTELY NECESSARY.  KEEP AWAY FROM LOW LYING 
OR FLOOD PRONE AREAS...SWOLLEN RIVERS...CREEKS AND STREAMS.  
MOTORISTS SHOULD NOT ATTEMPT DRIVING THROUGH LOW WATER CROSSINGS 
WHEN WATER COVERS THE ROAD...AND OBEY ALL BARRICADE MARKERS.   

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
000 
WGUS74 KEWX 021933
FFSSAT
TXC019-029-031-053-055-091-123-171-177-187-209-255-259-265-271-285-
299-325-385-453-463-491-493-022100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
233 PM CDT TUE JUL 2 2002

...FLASH FLOOD WARNINGS ARE IN EFFECT THROUGH 4 PM CDT FOR UVALDE, 
REAL, MEDINA, BANDERA, KERR, BEXAR, KENDALL, GILLESPIE, LLANO, 
BURNET, BLANCO, HAYS, COMAL, GUADALUPE, WILSON, KARNES, DEWITT, 
GONZALES, CALDWELL, TRAVIS, WILLIAMSON, BASTROP, FAYETTE, AND LAVACA 
COUNTIES...

A BAND OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINFALL RATES 
OF 2 TO 3.5 INCHES PER HOUR CONTINUED FROM BURNET TO GEORGETOWN TO 
AUSTIN TO GONZALES TO KARNES CITY, CUERO, AND HALLETTSVILLE.  THE 
RAINS WERE MOVING NORTH AT 20 MPH AND WILL AGGRAVATE ONGOING FLOOD 
PROBLEMS AS THEY TRAIN OVER THE SAME AREAS.   

ELSEWHERE, A STEDAILY DECREASING AREA OF RAIN CONTINUED ACROSS THE 
HILL COUNTY AND SOUTH CENTRAL TEXAS.  EVEN THROUGH RAINFALL RATES 
WERE LESS THAN ONE-QUARTER INCH PER HOUR, FLOOD PROBLEMS CONTINUED.  
ALSO, SHOWERS AND THUNDERSTORMS WERE REDEVELOPING OVER FAR SOUTHERN 
TEXAS AND MOVING NORTH TOWARD THIS AREA.  

NUMEROUS RIVERS AND CREEKS ACROSS THE HILL COUNTRY AND SOUTH CENTRAL 
TEXAS WERE ALREADY IN FLOOD OR WERE RAPIDLY APPROACHING FLOOD WITH 
RIVER FLOOD WARNINGS ISSUED.  ALSO, WIDESPREAD ROAD CLOSURES 
CONTINUED.  

AREAS OF RAIN AND THUNDERSTORMS WILL CONTINUE THROUGH THE AFTERNOON 
HOURS.  ADDITIONAL RAINFALL AMOUNTS THROUGH LATE AFTERNOON WILL 
AVERAGE 2 TO 4 INCHES WITH ISOLATED AMOUNTS OF 6 TO 8 INCHES.  SOME 
RAINFALL RATES COULD APPROACH 5 INCHES PER HOUR.  THESE TORRENTIAL 
RAINS WILL EXACERBATE ALREADY FLOODED CONDITIONS. 

THIS IS A DANGEROUS LIFE THREATENING SITUATION.  PERSONS ARE ADVISED 
TO TRAVEL ONLY WHEN ABSOLUTELY NECESSARY.  KEEP AWAY FROM LOW LYING 
OR FLOOD PRONE AREAS...SWOLLEN RIVERS...CREEKS AND STREAMS.  
MOTORISTS SHOULD NOT ATTEMPT DRIVING THROUGH LOW WATER CROSSINGS 
WHEN WATER COVERS THE ROAD...AND OBEY ALL BARRICADE MARKERS.   

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 1, 7:10 PM CDTFlash Flood WarningEWXComal3 hr
Jul 1, 7:54 PM CDTFlash Flood WarningEWXBexar4 hr
Jul 1, 8:58 PM CDTFlash Flood WarningEWXHays3 hr
Jul 1, 9:39 PM CDTFlash Flood WarningEWXComal2 hr
Jul 1, 9:58 PM CDTFlash Flood WarningEWXTravis2 hr
Jul 1, 11:40 PM CDTFlash Flood WarningEWXBexar, Comal, Hays, Kendall, Travis4 hr
Jul 2, 1:18 AM CDTFlash Flood WarningEWXBandera, Medina, Uvalde117 min
Jul 2, 2:29 AM CDTFlash Flood WarningEWXGillespie, Kerr, Real6 hr
Jul 2, 2:51 AM CDTFlash Flood WarningEWXBandera, Medina, Uvalde6 hr
Jul 2, 3:04 AM CDTFlash Flood WarningEWXBexar, Blanco, Burnet, Comal, Kendall5 hr
Jul 2, 3:47 AM CDTFlash Flood WarningEWXWilson5 hr
Jul 2, 4:29 AM CDTFlash Flood WarningEWXDeWitt, Gonzales, Guadalupe, Karnes4 hr
Jul 2, 4:37 AM CDTFlash Flood WarningEWXKinney4 hr
Jul 2, 6:01 AM CDTFlash Flood WarningEWXCaldwell, Hays6 hr
Jul 2, 6:04 AM CDTFlash Flood WarningEWXLavaca6 hr
Jul 2, 6:44 AM CDTFlash Flood WarningEWXBandera, Blanco, Burnet, Gillespie, Kendall, Kerr and 4 more5 hr
Jul 2, 6:50 AM CDTFlash Flood WarningEWXBexar, Comal, DeWitt, Gonzales, Guadalupe, Karnes and 1 more5 hr
Jul 2, 7:23 AM CDTFlash Flood WarningEWXBastrop, Fayette, Travis5 hr
Jul 2, 11:41 AM CDTFlash Flood WarningEWXEdwards, Kinney, Uvalde4 hr
Jul 2, 11:50 AM CDTFlash Flood WarningEWXBastrop, Caldwell, DeWitt, Fayette, Gonzales, Hays and 4 more4 hr
Jul 2, 3:34 PM CDTFlash Flood WarningEWXBlanco, Burnet, Llano4 hr
Jul 2, 3:44 PM CDTFlash Flood WarningEWXBastrop, Fayette, Lavaca, Lee4 hr
Jul 2, 3:52 PM CDTFlash Flood WarningEWXBandera, Bexar, Caldwell, Comal, DeWitt, Gillespie and 12 more4 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; radar from the NEXRAD Level II archive.