Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 396, NWS Austin/San Antonio, TX

November 22, 20049 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Nov 22, 2004, 1:58 AM CST for 9 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
Nov 22, 2004, 1:58 AM CST (07:58 UTC)
Expired
Nov 22, 2004, 6:00 AM CST
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Atascosa County, TX, Bexar County, TX, Comal County, TX, Frio County, TX, Hays County, TX, Kendall County, TX, Medina County, TX, Travis County, TX, Williamson County, TX

The radar

The Austin/San Antonio radar (KEWX), 27 km from the middle of the area, began a volume at 07:59 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 00:00Z, 8.0 hours before the alert went out and 251 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 2004-11-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1457 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, Corpus Christi, TX at 00:00Z on 2004-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 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
1457 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
746 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 220759
FFWEWX
TXC013-029-091-163-209-259-325-453-491-221200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
158 AM CST MON NOV 22 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  WILLIAMSON
  TRAVIS
  HAYS
  KENDALL
  COMAL
  BEXAR
  MEDINA
  ATASCOSA
  FRIO

* UNTIL 600 AM CST

* AT 151 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 
  MILES NORTHWEST OF ROUND ROCK TO 9 MILES WEST OF POTEET...MOVING 
  NORTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE GEORGETOWN DAM...
  GEORGETOWN...ANDICE...SERENADA...LEMING...SMITHSON VALLEY...
  FLORENCE...WINDCREST...GARDEN RIDGE...JARRELL...LIVE OAK...SELMA...
  ELMENDORF...KIRBY...CALAVERAS LAKE...WEIR...CHINA GROVE...UNIVERSAL
  CITY...ST. HEDWIG...WEST LAKE HILLS...SCHERTZ...NEW BRAUNFELS...
  ROLLINGWOOD...TANGLEWOOD FOREST...AUSTIN...WINDEMERE...SAN
  MARCOS...GRANGER...KYLE...PFLUGERVILLE...UHLAND...HUTTO...BUDA...
  ONION CREEK...BERGSTROM...LIBERTY HILL...MANOR...TAYLOR AND GRANGER
  DAM.

HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...
COUNTRY ROADS...AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
TRAVEL TONIGHT IS DISCOURAGED.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE AREAS.

REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2907 9927 3004 9852 3004 9852 2994 9842
      3004 9829 3050 9811 3050 9812 3091 9780
      3070 9733 3069 9732 2996 9780 2969 9809
      2959 9833 2947 9813 2913 9842 2907 9838
      2871 9861

$$
3 follow-up statements
000 
WGUS74 KEWX 220923
FFSEWX
TXC013-029-091-163-209-259-325-453-491-221200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
323 AM CST MON NOV 22 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 600 AM CST FOR FRIO...
ATASCOSA...MEDINA...BEXAR...COMAL...KENDALL...HAYS...TRAVIS AND
WILLIAMSON COUNTIES...

AT 313 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE MOVING EAST OF THE 
WARNED AREA. HOWEVER...PATCHY LIGHT TO MODERATE RAIN WILL CONTINUE 
FOR THE NEXT FEW HOURS. 

MANY SMALL STREAMS IN THE WARNED WILL BE FLOOD FOR THE NEXT FEW 
HOURS. BARTON...BEAR...SHOAL...WALLER...WALNUT...WILBARGER...AND 
WILLIAMSON CREEKS IN TRAVIS COUNTY WILL BE IN FLOOD. CALAVERAS AND 
SALADO CREEKS IN THE BEXAR COUNTY WILL BE IN FLOOD. TRIBUTARIES TO 
THE ATASCOSA RIVER IN ATASCOSA COUNTY WILL BE IN FLOOD.

LOCATIONS IN THE WARNING INCLUDE KIRBY...GRANGER...UNIVERSAL CITY...
ONION CREEK...BUDA...LIVE OAK...SELMA...WINDCREST...CHARLOTTE...
SOMERSET...GARDEN RIDGE...TERRELL HILLS...YANCEY...WOODCREEK...
WINDEMERE...WIMBERLEY...WEST LAKE HILLS...WEIR...TIMBERWOOD PARK...
THE DOMINION...TANGLEWOOD FOREST...SPRING BRANCH...SMITHSON VALLEY...
SHAVANO PARK...SERENADA...SEA WORLD...SAN ANTONIO...ROUND ROCK...
ROLLINGWOOD...RIO MEDINA...PFLUGERVILLE...OLMOS PARK...NATALIA...
MOORE...MANSFIELD DAM...LYTLE...LEON VALLEY...LEON SPRINGS...
LEANDER...LAKEWAY...LAGO VISTA...LACOSTE...LACKLAND AFB...KENDALIA...
JARRELL...HUTTO...HOLLYWOOD PARK...HILL COUNTRY VILLAGE...HENLY...
HELOTES...GUADALUPE RIVER STATE PARK...GEORGETOWN DAM...GEORGETOWN...
FLORENCE...FISCHER...FAIR OAKS RANCH...DRIPPING SPRINGS...
DRIFTWOOD...DEVINE...CROSS MOUNTAIN...CEDAR PARK...CASTROVILLE...
CANYON LAKE DAM...BULVERDE...BIG FOOT...BERGHEIM...BEE CAVE...
AUSTIN...ANDICE...ANDERSON MILL AND ALAMO HEIGHTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE 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.

REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2907 9927 3004 9852 3004 9852 2994 9842
      3004 9829 3050 9811 3050 9812 3091 9780
      3070 9733 3069 9732 2996 9780 2969 9809
      2959 9833 2947 9813 2913 9842 2907 9838
      2871 9861

$$
000 
WGUS74 KEWX 220944 CCA
FFSEWX
TXC013-029-091-163-209-259-325-453-491-221200-

FLASH FLOOD STATEMENT...CORRECTION TO TRAVIS COUNTY STREAMS
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
323 AM CST MON NOV 22 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 600 AM CST FOR FRIO...
ATASCOSA...MEDINA...BEXAR...COMAL...KENDALL...HAYS...TRAVIS AND
WILLIAMSON COUNTIES...

AT 313 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE MOVING EAST OF THE 
WARNED AREA. HOWEVER...PATCHY LIGHT TO MODERATE RAIN WILL CONTINUE 
FOR THE NEXT FEW HOURS. 

MANY SMALL STREAMS IN THE WARNED WILL BE FLOOD FOR THE NEXT FEW 
HOURS. BARTON...ONION...SHOAL...SLAUGHTER...WALLER...WALNUT...
WILBARGER...AND WILLIAMSON CREEKS IN TRAVIS COUNTY WILL BE IN FLOOD. 
BEAR CREEK IN HAYS AND TRAVIS COUNTIES. CALAVERAS AND SALADO CREEKS 
IN THE BEXAR COUNTY WILL BE IN FLOOD. TRIBUTARIES TO THE ATASCOSA 
RIVER IN ATASCOSA COUNTY WILL BE IN FLOOD.

LOCATIONS IN THE WARNING INCLUDE KIRBY...GRANGER...UNIVERSAL CITY...
ONION CREEK...BUDA...LIVE OAK...SELMA...WINDCREST...CHARLOTTE...
SOMERSET...GARDEN RIDGE...TERRELL HILLS...YANCEY...WOODCREEK...
WINDEMERE...WIMBERLEY...WEST LAKE HILLS...WEIR...TIMBERWOOD PARK...
THE DOMINION...TANGLEWOOD FOREST...SPRING BRANCH...SMITHSON VALLEY...
SHAVANO PARK...SERENADA...SEA WORLD...SAN ANTONIO...ROUND ROCK...
ROLLINGWOOD...RIO MEDINA...PFLUGERVILLE...OLMOS PARK...NATALIA...
MOORE...MANSFIELD DAM...LYTLE...LEON VALLEY...LEON SPRINGS...
LEANDER...LAKEWAY...LAGO VISTA...LACOSTE...LACKLAND AFB...KENDALIA...
JARRELL...HUTTO...HOLLYWOOD PARK...HILL COUNTRY VILLAGE...HENLY...
HELOTES...GUADALUPE RIVER STATE PARK...GEORGETOWN DAM...GEORGETOWN...
FLORENCE...FISCHER...FAIR OAKS RANCH...DRIPPING SPRINGS...
DRIFTWOOD...DEVINE...CROSS MOUNTAIN...CEDAR PARK...CASTROVILLE...
CANYON LAKE DAM...BULVERDE...BIG FOOT...BERGHEIM...BEE CAVE...
AUSTIN...ANDICE...ANDERSON MILL AND ALAMO HEIGHTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE 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.

REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2907 9927 3004 9852 3004 9852 2994 9842
      3004 9829 3050 9811 3050 9812 3091 9780
      3070 9733 3069 9732 2996 9780 2969 9809
      2959 9833 2947 9813 2913 9842 2907 9838
      2871 9861

$$
000 
WGUS74 KEWX 221108
FFSEWX
TXC013-029-091-163-209-259-325-453-491-221200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
508 AM CST MON NOV 22 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 600 AM CST FOR FRIO...
ATASCOSA...MEDINA...BEXAR...COMAL...KENDALL...HAYS...TRAVIS AND
WILLIAMSON COUNTIES...

AT 503 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY ACROSS 
ATASCOSA...BEXAR...FRIO AND MEDIAN COUNTIES. RAINFALL RATES WERE 
GENERALLY LESS THAN ONE INCH. 

MANY SMALL STREAMS WILL CONTINUE TO BE IN FLOOD FOR THE NEXT HOUR OR 
SO. BARTON...BEAR...ONION...SLAUGHTER...WALLER...WALNUT...
WILBARGER...AND WILLIAMSON CREEKS IN TRAVIS COUNTY WILL BE IN FLOOD. 
BEAR CREEK IN HAYS AND TRAVIS COUNTIES. CALAVERAS AND SALADO CREEKS 
IN THE BEXAR COUNTY WILL BE IN FLOOD. TRIBUTARIES TO THE ATASCOSA 
RIVER IN ATASCOSA COUNTY WILL BE IN FLOOD.

OTHER LOCATIONS IN THE WARNING INCLUDE DRIFTWOOD...HENLY...DRIPPING 
SPRINGS...BUDA...ONION CREEK...TANGLEWOOD FOREST...BEE 
CAVE...BERGSTROM...ROLLINGWOOD...WEST LAKE 
HILLS...LAKEWAY...MANSFIELD DAM...AUSTIN...LAGO VISTA...ANDERSON 
MILL...MANOR...PFLUGERVILLE...WINDEMERE...ROUND 
ROCK...HUTTO...GEORGETOWN...GEORGETOWN 
DAM...TAYLOR...SERENADA...ANDICE...WEIR...LIBERTY 
HILL...FLORENCE...GRANGER...JARRELL AND GRANGER DAM.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE 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 2907 9927 3004 9852 3004 9852 2994 9842
      3004 9829 3050 9811 3050 9812 3091 9780
      3070 9733 3069 9732 2996 9780 2969 9809
      2959 9833 2947 9813 2913 9842 2907 9838
      2871 9861

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 21, 8:22 PM CSTFlash Flood WarningEWXBastrop53 min
Nov 21, 8:38 PM CSTFlash Flood WarningEWXLee, Williamson2 hr
Nov 21, 11:46 PM CSTFlash Flood WarningEWXComal, Hays, Travis, Williamson3 hr
Nov 22, 1:00 AM CSTFlash Flood WarningEWXAtascosa, Bexar, Frio, Kendall, Medina3 hr
Nov 22, 2:47 AM CSTFlash Flood WarningEWXBastrop, Caldwell, Guadalupe3 hr
Nov 22, 3:55 AM CSTFlash Flood WarningEWXFayette, Lee2 hr
Nov 22, 5:19 AM CSTFlash Flood WarningEWXGonzales41 min
Nov 22, 6:08 AM CSTFlash Flood WarningEWXBastrop, Caldwell, Fayette, Gonzales, Lavaca, Lee3 hr
Nov 22, 6:13 AM CSTFlash Flood WarningEWXBandera, Medina3 hr
Nov 22, 6:59 AM CSTFlash Flood WarningEWXBexar, Comal, Kendall3 hr
Nov 22, 7:37 AM CSTSevere Thunderstorm WarningEWXBexar, Comal53 min
Nov 22, 8:10 AM CSTFlash Flood WarningEWXHays3 hr
Nov 22, 8:31 AM CSTFlash Flood WarningEWXGuadalupe3 hr
Nov 22, 8:42 AM CSTSevere Thunderstorm WarningEWXComal48 min
Nov 22, 8:50 AM CSTSevere Thunderstorm WarningEWXGuadalupe40 min
Nov 22, 9:08 AM CSTTornado WarningEWXGuadalupe22 min
Nov 22, 9:22 AM CSTFlash Flood WarningEWXBlanco, Burnet, Travis, Williamson4 hr
Nov 22, 9:26 AM CSTSevere Thunderstorm WarningEWXCaldwell, Guadalupe64 min
Nov 22, 9:41 AM CSTFlash Flood WarningEWXBastrop, Caldwell, Fayette, Gonzales3 hr
Nov 22, 9:54 AM CSTFlash Flood WarningEWXBexar, Comal, Kendall3 hr
Nov 22, 10:15 AM CSTFlash Flood WarningEWXLee3 hr
Nov 22, 11:05 AM CSTFlash Flood WarningEWXBastrop, Caldwell, Fayette, Gonzales, Guadalupe6 hr
Nov 22, 11:15 AM CSTFlash Flood WarningEWXHays6 hr
Nov 22, 12:40 PM CSTFlash Flood WarningEWXBexar, Comal4 hr
Nov 22, 1:08 PM CSTFlash Flood WarningEWXLee, Travis, Williamson4 hr
Nov 22, 1:14 PM CSTSevere Thunderstorm WarningEWXGonzales61 min
Nov 22, 1:30 PM CSTFlash Flood WarningEWXWilson4 hr
Nov 22, 2:22 PM CSTSevere Thunderstorm WarningEWXWilliamson38 min
Nov 22, 2:57 PM CSTFlash Flood WarningEWXLavaca3 hr
Nov 22, 3:35 PM CSTFlash Flood WarningEWXDeWitt, Karnes3 hr
Nov 22, 4:48 PM CSTFlash Flood WarningEWXBexar, Caldwell, Comal, Gonzales, Guadalupe, Hays4 hr
Nov 22, 5:45 PM CSTFlash Flood WarningEWXDeWitt, Karnes, Lavaca3 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.