Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 294, NWS Austin/San Antonio, TX

September 26, 2004Edwards County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 26, 2004, 10:39 PM CDT for Edwards 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
Sep 26, 2004, 10:39 PM CDT (03:39 UTC)
Expired
Sep 27, 2004, 2:45 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Edwards County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 3.7 hours before the alert went out and 70 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 2004-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 478 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 2004-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
478 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
83 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 270341
FFWSAT
TXC137-270745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1039 PM CDT SUN SEP 26 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  EDWARDS

* UNTIL 245 AM CDT

* AT 1030 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM SHOWERS AND THUNDERSTORMS ACROSS WESTERN 
  EDWARDS COUNTY.

* THESE STORMS PRODUCING VERY HEAVY RAIN WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF EDWARDS COUNTY.

LAW ENFORCEMENT REPORTED THAT HIGHWAY 337 SOUTH OF ROCKSPRINGS AND 
FM 2523 ARE CLOSED.

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

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.

LAT...LON 2963 10068 2963 10008 3027 9997 3028 10070

$$
1 follow-up statement
000 
WGUS74 KEWX 270747
FFSSAT
TXC137-270753-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 AM CDT MON SEP 27 2004

...THE FLASH FLOOD WARNING FOR EDWARDS COUNTY EXPIRED AT 245 AM 
CDT...

THE SHOWERS AND HEAVY RAIN HAVE DIMINISHED OVER EDWARDS COUNTY AND 
THE FLASH FLOOD WARNING WAS ALLOWED TO EXPIRE.  HOWEVER SCATTERED 
SHOWERS ARE STILL POSSIBLE THROUGH THE MORNING HOURS OVER THE 
WESTERN HILL COUNTRY.  MOTORISTS SHOULD CONTINUE TO USE CAUTION WHEN 
TRAVELING THROUGH VAL VERDE AND EDWARDS COUNTIES DUE TO POSSIBLE 
RESIDUAL FLOODING FROM HEAVY RAINS SUNDAY EVENING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 7:44 PM CDTFlash Flood WarningEWXVal Verde4 hr
Sep 26, 11:38 PM CDTFlash Flood WarningEWXVal Verde4 hr
Sep 27, 12:46 PM CDTFlash Flood WarningEWXVal Verde3 hr
Sep 27, 2:05 PM CDTFlash Flood WarningEWXEdwards3 hr
Sep 27, 4:28 PM CDTFlash Flood WarningEWXKinney, Val Verde2 hr
Sep 27, 6:31 PM CDTFlash Flood WarningEWXReal, Uvalde3 hr
Sep 27, 6:33 PM CDTFlash Flood WarningEWXKinney57 min

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.