Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 128, NWS Austin/San Antonio, TX

June 9, 2004Guadalupe County, Wilson County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 9, 2004, 12:22 PM CDT for Guadalupe County, Wilson County, Texas. It was in force for 3 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
Jun 9, 2004, 12:22 PM CDT (17:22 UTC)
Expired
Jun 9, 2004, 3:15 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Guadalupe County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 33 km from the middle of the area, began a volume at 17:24 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

Corpus Christi, TX (KCRP), launched 12:00Z, 5.4 hours before the alert went out and 199 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 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1670 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 12:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 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
1670 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
133 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 091725
FFWSAT
TXC187-493-092015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1222 PM CDT WED JUN 9 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  GUADALUPE
  WILSON

* UNTIL 315 PM CDT

* AT 1220 PM CDT...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WAS
  DEVELOPING OVER WILSON AND GUADALUPE COUNTY...MOVING NORTH AT
  25 MPH. 

* OTHER LOCATIONS IN THE WARNING INCLUDE SUTHERLAND SPRINGS...
  SEGUIN...SCHERTZ...MCQUEENEY...LA VERNIA...KINGSBURY...GERONIMO
  AND FLORESVILLE.

SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY RAIN OVER GUADALUPE AND
WILSON COUNTIES FOR THE NEXT FEW HOURS.  

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.

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 2915 9829 2910 9811 2926 9791 2944 9793
          2964 9778 2975 9791 2961 9815 2954 9805

$$
1 follow-up statement
000 
WGUS74 KEWX 091731
FFSSAT
TXC013-019-029-031-091-171-187-259-265-299-325-385-463-493-091901-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1226 PM CDT WED JUN 9 2004

...FLASH FLOOD WARNING FOR ATASCOSA...BEXAR...LLANO...GILLESPIE...
KENDALL...KERR...BANDERA...REAL...UVALDE...AND MEDINA COUNTIES
THROUGH 1 PM CDT...
...FLASH FLOOD WARNING FOR BLANCO AND COMAL COUNTIES UNTIL 2 PM
CDT...
...FLASH FLOOD WARNING FOR GUADALUPE AND WILSON COUNTIES
UNTIL 315 PM CDT...
...FLASH FLOOD WATCH THROUGH 400 PM CDT...

AT 1215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWS AN
AREA OF RAIN...HEAVY AT TIMES...OVER PARTS OF REAL...UVALDE...
MEDINA...ATASCOSA...BEXAR...COMAL...GUADALUPE...WILSON...BANDERA...
KERR...GILLESPIE...BLANCO AND LLANO COUNTIES.

SHOWERS AND THUNDERSTORMS PRODUCING THESE HEAVY RAINS WERE MOVING
NORTH AT 25 MPH.  OCCASIONAL RAIN...HEAVY AT TIMES...DANGEROUS
LIGHTNING...AND WIND GUSTS 20 TO 40 MPH WILL ACCOMPANY THESE
STORMS...DURING THIS HEAVY RAIN EVENT THIS AFTERNOON.

TRAVEL IS DISCOURAGED OVER THE HILL COUNTRY THIS AFTERNOON...
AS LOW WATER CROSSINGS WILL EXPERIENCE FLOODING...AND MANY SECONDARY
ROADS...INCLUDING FARM AND RANCH ROADS...NEAR CREEKS...SMALL STREAMS
AND RIVERS WILL FLOOD.

OVER PARTS OF SOUTH CENTRAL TEXAS ADJACENT TO THE HILL COUNTRY...LOW
WATER CROSSINGS AND ROADS IN LOW LYING AREAS ARE EXPECTED TO FLOOD
WHERE HEAVY RAIN FORMS THIS AFTERNOON.  OCCASIONAL RAIN IS
EXPECTED THIS AFTERNOON...AND WILL BE HEAVY AT TIMES.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES IS POSSIBLE TODAY...
WITH ISOLATED AMOUNTS OF 2 TO 5 INCHES POSSIBLE FROM THE STRONGER
SHOWERS AND THUNDERSTORMS.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 7:01 PM CDTTornado WarningEWXMedina29 min
Jun 8, 8:14 PM CDTFlash Flood WarningEWXFrio, Medina3 hr
Jun 8, 8:26 PM CDTTornado WarningEWXMedina34 min
Jun 8, 8:31 PM CDTFlash Flood WarningEWXEdwards, Kerr, Real3 hr
Jun 8, 8:51 PM CDTFlash Flood WarningEWXDimmit, Zavala3 hr
Jun 8, 11:48 PM CDTFlash Flood WarningEWXZavala117 min
Jun 9, 4:07 AM CDTFlash Flood WarningEWXBlanco4 hr
Jun 9, 5:02 AM CDTFlash Flood WarningEWXLlano4 hr
Jun 9, 5:45 AM CDTFlash Flood WarningEWXBandera4 hr
Jun 9, 5:59 AM CDTFlash Flood WarningEWXGillespie, Kerr3 hr
Jun 9, 6:13 AM CDTFlash Flood WarningEWXMedina, Uvalde4 hr
Jun 9, 7:15 AM CDTFlash Flood WarningEWXKendall3 hr
Jun 9, 7:59 AM CDTFlash Flood WarningEWXBlanco4 hr
Jun 9, 8:53 AM CDTFlash Flood WarningEWXBandera, Gillespie, Kendall, Kerr, Llano, Medina and 2 more4 hr
Jun 9, 9:00 AM CDTFlash Flood WarningEWXBexar3 hr
Jun 9, 9:53 AM CDTFlash Flood WarningEWXAtascosa, Bexar3 hr
Jun 9, 11:01 AM CDTFlash Flood WarningEWXComal3 hr
Jun 9, 11:58 AM CDTFlash Flood WarningEWXBlanco2 hr
Jun 9, 12:36 PM CDTFlash Flood WarningEWXHays3 hr
Jun 9, 12:38 PM CDTSevere Thunderstorm WarningEWXComal67 min
Jun 9, 12:58 PM CDTFlash Flood WarningEWXBandera, Blanco, Burnet, Gillespie, Kendall, Kerr and 1 more3 hr
Jun 9, 1:07 PM CDTFlash Flood WarningEWXAtascosa, Bexar3 hr
Jun 9, 1:20 PM CDTFlash Flood WarningEWXTravis, Williamson4 hr
Jun 9, 1:55 PM CDTFlash Flood WarningEWXComal4 hr
Jun 9, 3:25 PM CDTFlash Flood WarningEWXGuadalupe, Hays, Wilson4 hr
Jun 9, 3:45 PM CDTFlash Flood WarningEWXAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 14 more4 hr
Jun 9, 4:55 PM CDTFlash Flood WarningEWXKarnes3 hr
Jun 9, 5:25 PM CDTFlash Flood WarningEWXDeWitt, Fayette, Lavaca, Lee6 hr

Nearby

Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004

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.