Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 27, NWS Austin/San Antonio, TX

June 1, 2005Bexar County, Guadalupe County, Medina County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 1, 2005, 3:54 AM CDT for Bexar County, Guadalupe County, Medina 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
Jun 1, 2005, 3:54 AM CDT (08:54 UTC)
Expired
Jun 1, 2005, 6:00 AM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bexar County, TX, Guadalupe County, TX, Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 55 km from the middle of the area, began a volume at 08:56 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 8.9 hours before the alert went out and 223 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 00:00Z on 2005-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3659 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 00:00Z on 2005-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939587897Sfc1 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
3659 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1496 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 010854
FFWEWX
TXC029-187-325-011100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
354 AM CDT WED JUN 1 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  GUADALUPE
  BEXAR
  MEDINA

* UNTIL 600 AM CDT

* AT 355 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE ZORN...WINDCREST...UNIVERSAL
  CITY...TIMBERWOOD PARK...THE DOMINION...TERRELL HILLS...STAPLES...
  ST. HEDWIG...SHAVANO PARK...SELMA...SEGUIN...SEA WORLD...SCHERTZ...
  SAN ANTONIO...RIO MEDINA...OLMOS PARK...NEW BERLIN...MICO...
  MCQUEENEY...MARION...LIVE OAK...LEON VALLEY...LEON SPRINGS...
  LACKLAND AFB...KIRBY...KINGSBURY...HOLLYWOOD PARK...HILL COUNTRY
  VILLAGE...HELOTES...GERONIMO...FAIR OAKS RANCH...CROSS MOUNTAIN...
  CIBOLO...CHINA GROVE AND ALAMO HEIGHTS.

HEAVY RAINFALL WILL CAUSE FLASH FLOODING OVER SMALL CREEKS AND
STREAMS...URBAN AREAS...HIGHWAYS...STREETS...UNDERPASSES AND POORLY
DRAINED AREAS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

LAT...LON 2909 9941 2962 9941 2962 9899 2955 9897
      2972 9878 2976 9855 2973 9835 2967 9839
      2959 9831 2968 9809 2985 9789 2965 9765
      2938 9784 2939 9812 2944 9814 2911 9842
      2925 9880 2909 9882

$$
1 follow-up statement
000 
WGUS74 KEWX 011001 RRA
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 AM CDT WED JUN 1 2005

TXC029-187-325-011100-
GUADALUPE TX-BEXAR TX-MEDINA TX
500 AM CDT WED JUN 1 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 600 AM CDT FOR MEDINA...
BEXAR AND GUADALUPE COUNTIES...

AT 454 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A BROAD BAND OF THUNDERSTORMS WITH HEAVY RAIN EXTENDING 
ACROSS MEDINA..SOUTHERN BEXAR INTO GUADALUPE COUNTY. RAINFALL RATES 
OF UP TO 2 AND A HALF INCHES PER HOUR HAVE BEEN OBSERVED ACROSS 
CENTRAL MEDINA COUNTY. 

LOCATIONS IN THE WARNING INCLUDE ZORN...WINDCREST...UNIVERSAL CITY...
TIMBERWOOD PARK...THE DOMINION...STAPLES...SHAVANO PARK...SELMA...
SEGUIN...SCHERTZ...MICO...MCQUEENEY...MARION...LIVE OAK...LEON
SPRINGS...KINGSBURY...HOLLYWOOD PARK...HILL COUNTRY VILLAGE...
HELOTES...GERONIMO...FAIR OAKS RANCH...CROSS MOUNTAIN AND CIBOLO.

THIS IS A SERIOUS FLOOD SITUATION. PERSONS ARE URGED TO BE ALERT TO 
RISING WATER PARTICULARLY IN LOW LYING OR FLOOD PRONE AREAS. 
MOTORISTS SHOULD NOT DRIVE INTO FLOODED ROADWAYS OR ACROSS LOW WATER 
CROSSINGS.  
 
HEAVY RAINFALL WILL CAUSE FLASH FLOODING OVER SMALL CREEKS AND
STREAMS...URBAN AREAS...HIGHWAYS...STREETS...UNDERPASSES AND POORLY
DRAINED AREAS.

LAT...LON 2909 9940 2962 9940 2962 9899 2955 9896
      2972 9878 2976 9855 2973 9835 2967 9839
      2959 9828 2968 9808 2984 9789 2964 9765
      2939 9784 2940 9811 2944 9814 2913 9842
      2926 9878 2909 9882

$$

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 1, 3:00 AM CDT, 54 minutes earlier.

Area forecast discussion, Jun 1, 3:00 AM CDT, 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
3 AM CDT WED JUN 1 2005

.DISCUSSION...
MASSIVE MCS MOVING THROUGH THE STATE IS DROPPING COPIOUS RAIN.  THIS
WILL SUPPRESS DAYTIME HEATING AND KEEP TODAYS HIGHS MAINLY IN THE
85 TO 90 RANGE.  GOOD SHORT WAVE TROUGH WILL SLIDE ON THROUGH TODAY.
THE UPPER RIDGE BEGINS REBUILDING OVER THE SOUTHERN ROCKIES WITH A
SUBSIDENT FLOW OVER US TONIGHT THROUGH THURSDAY. THE SLACK GRAIDENT
AND WET GROUNDS WILL LEAD TO AREAS OF FOG THURSDAY MORNING. THE NEXT
VIGOROUS SHORT WAVE TROUGH IS DUE FRIDAY. TIMING UNSURE AS ALL
MODELS HAVE DIFFERING LONGITUDINAL POSITIONS. COULD BE AS EARLY AS
FRIDAY MORNING OR LATE AS FRIDAY NIGHT. EITHER WAY, GOOD SHOWER AND
THUNDERSTORM DEVELOPMENT FRIDAY INTO SATURDAY AS THE DRY LINE WILL
BE CLOSE BY FOR STORM INITIATION. UPPER HEIGHTS GRADUALLY INCREASE
SATURDAY AND SUNDAY WITH MINOR DISTURBANCES CONTINUING TO FLOW EAST
ACROSS TEXAS.  A DIFLUENT UPPER FLOW DEVELOPS OVER WEST TEXAS NEXT
WEEK.  THIS WILL LIMIT SHOWER AND THUNDERSTORM ACTIVITY TO EVENING
HOURS MAINLY WESTERN MOST COUNTIES.

TODAYS POPS HIGHER THIS MORNING THEN DROP TO 10%-20% THIS AFTERNOON.
POPS INCREASE FRIDAY WITH THE NEXT STRONG SHORT WAVE TROUGH. WILL GO
LOWER THAN MOS ON FRI MIN TEMPS, EXPECTING ANOTHER MCS WILL DEVELOP.
OTHERWISE TEMPS REMAIN IN THE SEASONAL RANGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              90  74  91 74 / 60  10  10  20
AUSTIN BERGSTROM INTL AIRPORT  89  72  90 74 / 60  10  10  20
DEL RIO INTL AIRPORT           95  75  97 76 / 40   0   0  20
SAN ANTONIO INTL AIRPORT       90  74  91 75 / 50  10  10  20

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.

&&

06/02/JB

In the hours before

Special weather statement, May 31, 11:59 PM CDT, 3 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1159 PM CDT TUE MAY 31 2005

TXZ171>173-183>194-202>209-217>225-228-010701-
ATASCOSA-BANDERA-BASTROP-BEXAR-BLANCO-BURNET-CALDWELL-COMAL-DEWITT-
DIMMIT-EDWARDS-FAYETTE-FRIO-GILLESPIE-GONZALES-GUADALUPE-HAYS-KARNES-
KENDALL-KERR-KINNEY-LAVACA-LEE-LLANO-MAVERICK-MEDINA-REAL-TRAVIS-
UVALDE-VAL VERDE-WILLIAMSON-WILSON-ZAVALA-
1159 PM CDT TUE MAY 31 2005

...INCREASING CHANCEs FOR THUNDERSTORMS TONIGHT...

ANOTHER WEATHER SYSTEM OVER WEST AND NORTH TEXAS...THAT IS PRODUCING
THUNDERSTORMS...WILL MOVE SOUTH AND SOUTHEAST TONIGHT AT 30 TO 35
MPH TO PARTS OF CENTRAL AND SOUTH CENTRAL TEXAS.  THIS WILL CAUSE AN
INCREASING CHANCE FOR MAINLY THUNDERSTORMS AND RAIN SHOWERS OVER
PARTS OF CENTRAL AND SOUTH CENTRAL TEXAS TONIGHT TO THE EARLY MORNING
HOURS OF WEDNESDAY.  SOME OF THESE THUNDERSTORMS MAY BE SEVERE WITH
STRONG STRAIGHT-LINE WINDS...LARGE HAIL AND LOCALLY HEAVY RAIN.
Local storm report, Jun 1, 2:37 AM CDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
237 AM CDT WED JUN 01 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 AM     HAIL             KERRVILLE               30.04N 99.14W
06/01/2005  0.88 INCH        KERR               TX   FIRE DEPT/RESCUE

&&

JBP
Local storm report, Jun 1, 2:54 AM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
254 AM CDT WED JUN 01 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 AM     HAIL             24 W MOUNTAIN HOME      30.17N 99.77W
06/01/2005  1.75 INCH        EDWARDS            TX   AIRPLANE PILOT

            OBSERVER LIVES ON THE KERR/EDWARDS CO LINE ON HWY83 20
            MILES SOUTH OF JUNCTION.

&&

JBP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 1:00 AM CDTSevere Thunderstorm WarningEWXEdwards, Kerr60 min
Jun 1, 1:34 AM CDTTornado WarningEWXEdwards41 min
Jun 1, 1:44 AM CDTSevere Thunderstorm WarningEWXGillespie, Llano61 min
Jun 1, 1:54 AM CDTSevere Thunderstorm WarningEWXKerr66 min
Jun 1, 1:58 AM CDTTornado WarningEWXReal32 min
Jun 1, 2:15 AM CDTSevere Thunderstorm WarningEWXBandera60 min
Jun 1, 2:26 AM CDTTornado WarningEWXBandera, Kerr, Real34 min
Jun 1, 2:32 AM CDTSevere Thunderstorm WarningEWXKendall58 min
Jun 1, 2:38 AM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Gillespie, Llano67 min
Jun 1, 2:43 AM CDTSevere Thunderstorm WarningEWXBandera, Kerr, Real62 min
Jun 1, 2:53 AM CDTSevere Thunderstorm WarningEWXEdwards67 min
Jun 1, 3:01 AM CDTTornado WarningEWXBexar, Comal, Kendall29 min
Jun 1, 3:04 AM CDTSevere Thunderstorm WarningEWXWilliamson56 min
Jun 1, 3:17 AM CDTSevere Thunderstorm WarningEWXBandera, Medina58 min
Jun 1, 3:25 AM CDTFlash Flood WarningEWXBandera, Edwards, Kendall, Kerr, Real3 hr
Jun 1, 3:25 AM CDTSevere Thunderstorm WarningEWXEdwards, Real65 min
Jun 1, 3:29 AM CDTSevere Thunderstorm WarningEWXBexar, Comal63 min
Jun 1, 3:39 AM CDTTornado WarningEWXMedina36 min
Jun 1, 3:52 AM CDTSevere Thunderstorm WarningEWXUvalde53 min
Jun 1, 4:03 AM CDTFlash Flood WarningEWXDeWitt, Fayette, Gonzales, Karnes, Lavaca4 hr
Jun 1, 4:05 AM CDTFlash Flood WarningEWXComal115 min
Jun 1, 4:11 AM CDTTornado WarningEWXMedina34 min
Jun 1, 5:11 AM CDTSevere Thunderstorm WarningEWXKarnes64 min
Jun 1, 5:22 AM CDTSevere Thunderstorm WarningEWXUvalde, Zavala53 min
Jun 1, 6:18 AM CDTSevere Thunderstorm WarningEWXZavala39 min
Jun 1, 6:32 AM CDTTornado WarningEWXZavala23 min
Jun 1, 6:41 AM CDTSevere Thunderstorm WarningEWXFrio43 min

Nearby

Flash Flood Warnings in Texas, 2005Every flash flood warning in 2005

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.