Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 276, NWS Austin/San Antonio, TX

August 28, 2004Edwards County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 28, 2004, 3:11 PM CDT for Edwards 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
Aug 28, 2004, 3:11 PM CDT (20:11 UTC)
Expired
Aug 28, 2004, 5:15 PM CDT
In force
2 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 12:00Z, 8.2 hours before the alert went out and 121 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 12:00Z on 2004-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1596 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 12:00Z on 2004-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939Sfc1 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
1596 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
81 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 282013
FFWSAT
TXC137-282215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
311 PM CDT SAT AUG 28 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 515 PM CDT

* AT 307 PM CDT...VERY HEAVY RAIN WAS REPORTED FROM A THUNDERSTORM 
  OVER EDWARDS COUNTY...BETWEEN ROCKSPRINGS AND TELEGRAPH...MOVING
  EAST AT 5 MPH.

* THE STORM PRODUCING VERY HEAVY RAIN WILL OTHERWISE REMAIN OVER
  MAINLY RURAL AREAS OF EDWARDS COUNTY ALONG HIGHWAYS 377 AND 41
  AS WELL PORTIONS OF THE SOUTH LLANO RIVER. 

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 3011 9981 3029 9984 3026 10020 2994 10006
      3009 9998

$$
3 follow-up statements
000 
WGUS74 KEWX 282051
FFSSAT
TXC137-282215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
350 PM CDT SAT AUG 28 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 515 PM CDT FOR EDWARDS
COUNTY...

AT 347 PM CDT...A THUNDERSTORM PRODUCING VERY HEAVY RAIN WAS
REPORTED.  THIS STORM WAS LOCATED OVER EDWARDS COUNTY...OR ABOUT 19
MILES NORTHEAST OF ROCKSPRINGS...MOVING EAST AT 5 MPH.

THE THIS THUNDERSTORM WITH EXCESSIVE RAIN WILL OTHERWISE REMAIN OVER 
RURAL AREAS OF EDWARDS COUNTY BETWEEN ROCKSPRINGS AND TELEGRAPH 
ALONG HIGHWAY 377 AS WELL AS HIGHWAY 41.

ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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.

LAT...LON 3011 9981 3029 9984 3026 10020 2994 10006
      3009 9998

$$
000 
WGUS74 KEWX 282122
FFSSAT
TXC137-282215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
418 PM CDT SAT AUG 28 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 515 PM CDT FOR EDWARDS
COUNTY...

AT 416 PM CDT...A THUNDERSTORM PRODUCING VERY HEAVY RAIN WAS OVER 
WESTERN EDWARDS COUNTY...OR ABOUT 20 MILES WEST OF 
ROCKSPRINGS...MOVING SOUTH AT 5 MPH.

THE THIS THUNDERSTORM WITH EXCESSIVE RAIN WILL OTHERWISE REMAIN OVER 
MAINLY RURAL AREAS OF WESTERN EDWARDS COUNTY.

ADDITIONAL RAINFALL AMOUNTS OF AROUND ONE INCH ARE POSSIBLE IN 
WESTERN EDWARDS COUNTY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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.

LAT...LON 3011 9981 3029 9984 3026 10020 2994 10006
      3009 9998

$$
000 
WGUS74 KEWX 282215
FFSSAT
TXC137-282230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
513 PM CDT SAT AUG 28 2004

...THE FLASH FLOOD WARNING FOR EDWARDS COUNTY WILL EXPIRE AT 515 PM
CDT...

AT 510 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
ONLY WIDELY SCATTERED PATCHES OF LIGHT TO MODERATE RAINS ACROSS 
EDWARDS COUNTY. AS A RESULT...THE FLASH FLOOD WARNING WILL BE LEFT 
TO EXPIRE AT 515 PM. 

MINOR FLOODING OF LOW LYING AREAS MAY PERSIST AND SMALL STREAMS MAY 
RUN HIGH FOR THE NEXT HOUR OR SO.  

LAT...LON 3011 9981 3029 9984 3026 10020 2994 10006
      3009 9998

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 3:24 PM CDTSevere Thunderstorm WarningEWXVal Verde66 min
Aug 28, 4:12 PM CDTFlash Flood WarningEWXKerr3 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.