Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 89, NWS Austin/San Antonio, TX

May 13, 2004Bastrop County, Caldwell County, Fayette County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 13, 2004, 3:02 PM CDT for Bastrop County, Caldwell County, Fayette County, 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
May 13, 2004, 3:02 PM CDT (20:02 UTC)
Expired
May 13, 2004, 7:00 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bastrop County, TX, Caldwell County, TX, Fayette County, TX

The radar

The Austin/San Antonio radar (KEWX), 65 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 246 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 2004-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2496 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 2004-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
2496 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 132003
FFWSAT
TXC021-055-149-140000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
302 PM CDT THU MAY 13 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  BASTROP
  FAYETTE
  CALDWELL

* UNTIL 700 PM CDT

* AT 256 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM A THUNDERSTORM COMPLEX SPREADING ACROSS THE TRI 
COUNTY REGION.  RAINFALL RATES ARE IN EXCESS OF 3 INCHES AN HOUR.

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 IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

LAT...LON 2993 9774 2973 9748 2986 9675 3026 9735

$$
1 follow-up statement
000 
WGUS74 KEWX 132130
FFSSAT
TXC021-055-149-132230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
430 PM CDT THU MAY 13 2004

...THE FLASH FLOOD WARNING FOR CALDWELL...FAYETTE AND BASTROP
COUNTIES IS CANCELLED...

THE HEAVY RAINS HAVE EXITED THE COUNTIES.  RAINFALL AMOUNTS OVER THE 
PAST COUPLE OF HOURS ARE ESTIMATED AT LESS THAN ONE INCH OVER 
CALDWELL AND BASTROP COUNTIES...WITH HIGHER AMOUNTS OF 1 TO 3 INCHES 
OVER FAYETTE COUNTY.  

A FLASH FLOOD WATCH REMAIN IN EFFECT THROUGH 4 PM FRIDAY 
AFTERNOON.  ADDITIONAL RAINS MAY REDEVELOP OVERNIGHT AND A WARNING 
MAY BE REISSUED. 

LAT...LON 3029 9743 2986 9768 2970 9689 2998 9667
          3003 9707

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 8:28 AM CDTFlash Flood WarningEWXWilliamson3 hr
May 13, 11:29 AM CDTFlash Flood WarningEWXWilliamson2 hr
May 13, 2:17 PM CDTSevere Thunderstorm WarningEWXWilson58 min
May 13, 2:30 PM CDTFlash Flood WarningEWXGonzales, Karnes, Wilson3 hr
May 13, 3:36 PM CDTTornado WarningEWXKarnes54 min
May 13, 4:34 PM CDTFlash Flood WarningEWXDeWitt, Gonzales, Karnes, Lavaca, Wilson3 hr
May 13, 4:40 PM CDTFlash Flood WarningEWXKarnes3 hr
May 13, 6:24 PM CDTSevere Thunderstorm WarningEWXLlano66 min
May 13, 6:57 PM CDTFlash Flood WarningEWXLlano2 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.