Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 24, NWS Austin/San Antonio, TX

May 26, 2003Edwards County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 26, 2003, 2:15 AM 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
May 26, 2003, 2:15 AM CDT (07:15 UTC)
Expired
May 26, 2003, 4:15 AM 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

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, 7.3 hours before the alert went out and 83 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 2003-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2132 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 2003-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
2132 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1625 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 260722
FFWSAT
TXC137-260915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
215 AM CDT MON MAY 26 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 415 AM CDT

* AT 215 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN 
AREA OF VERY HEAVY RAIN NEAR BARKSDALE IN THE SOUTHWEST PORTION OF 
THE COUNTY MOVING NORTHEAST AT 30 MPH. RAINFALL RATES UP TO 1 TO 2 
INCHES PER HOUR ARE LIKELY IN THE PATH OF THIS STORM. VERY HEAVY 
RAIN WILL CONTINUE TO FALL OVER AREAS THAT HAVE ALREADY RECEIVED 2 
INCHES OF RAIN.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.


LAT...LON 3026 10064 2964 10061 2963 10008 3027 10001

$$
1 follow-up statement
000 
WGUS74 KEWX 260827
FFSSAT
TXC137-260930-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
323 AM CDT MON MAY 26 2003

...A FLASH FLOOD WARNING CONTINUES FOR EDWARDS COUNTY UNTIL 415 AM
CDT...

 NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE HEAVIEST 
RAINS HAVE MOVED EAST OF THE AREA. HOWEVER...RUNOFF FROM RECENT 
HEAVY RAINS IS STILL A THREAT TO ENHANCE FLASH FLOODING. RESIDENTS 
IN AND NEAR THE SOUTHEAST PORTION OF EDWARDS COUNTY... PARTICULARLY 
NEAR BARKSDALE SHOULD BE ON THE LOOKOUT FOR RISING WATER IN AND NEAR 
LOW WATER CROSSINGS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST
WEATHER INFORMATION.

$$

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 May 25, 9:25 PM CDT, 4 hours 50 minutes earlier.

Area forecast discussion, May 25, 9:25 PM CDT, 4 hours 50 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
925 PM CDT SUN MAY 25 2003

UPDATING FORECAST TO INCREASE 1ST PERIOD POPS...MAINLY ACROSS THE
HILL COUNTRY INCLUDING VAL VERDE COUNTY BASED ON CURRENT RADAR
TRENDS AND POSITION/PROGRESSION OF SURFACE BOUNDARY. MUCH NEEDED
RAIN ON THE WAY...BUT LOCALLY HEAVY RAINFALL IN THE HILL COUNTRY MAY
CAUSE FLASH FLOODING.

11/01/23

PREVIOUS DISCUSSION...
COLD FRONT WILL DROP SOOTH INTO SOUTH CENTRAL TEXAS TONIGHT WITH
OVERRUNNING COMMENCING IMMEDIATELY.  PERTURBATIONS IN THE SOUTHERN
STREAM WILL GENERATE SHOWERS AND THUNDERSTORMS ALONG AND BEHIND THE
FRONT.  THE SURFACE RIDGE WILL NOSE SOUTHWEST THROUGH TEXAS WHILE
THE UPPER LOW OVER THE SOUTHERN ROCKIES PUSHES A PACIFIC FRONT INTO
WEST TEXAS.  CHANCES OF OVERRUNNING RAIN GOING THROUGH MONDAY
NIGHT.  MEANWHILE THE EASTERN U.S. TROUGH REORIENT ITSELF TOWARD THE
GULF COAST AND THE UPPER RIDGE REGAINS CONTROL OF THE ROCKIES
TUESDAY.  MOST PRECIP SHUD BE CONFINED TO THE SOUTHWESTERN COUNTIES
TUESDAY WITH DECREASING CLOUDINESS OVER NORTHEAST COUNTIES. THE
UPPER HIGH CENTER DRIFTS OVER NORTH TEXAS FRIDAY AND GETS SQUASHED
SOUTH AGAIN AS THE FLOW BECOMES ZONAL.

SO FOR THE NEXT COUPLE DAYS EXPECT SCATTERED SHOWERS AND
THUNDERSTORMS WITH TEMPS NEAR OR BELOW SEASONAL NORMALS.  ATMOS
DRYING OVER NORTHEAST COUNTIES WEDNESDAY.  POSSIBLE MCS DROPPING
SOUTH WEDNESDAY NIGHT AND THURSDAY NIGHT.  UPPER HIGH MAY BE STRONG
ENUF FRIDAY TO SUPPRESS CONVECTION BUT ISOLATED CHANCES OUT WEST
REMAIN A POSSIBILITY WITH THE SIERRAS NEAR BY.  ANOTHER UPPER LOW IN
THE SOUTHERN STREAM DUE TO IMPACT WEATHER NEXT WEEKEND SO WILL KEEP
LOW POPS AT THIS TIME.

PRELIMS NUMBERS...
AUS 65 82 64 83 60   55520
DRT 70 85 70 88 67   66552
SAT 67 86 67 86 61   55530

.EWX...NONE.

06/04/JB
Hazardous weather outlook, May 25, 6:00 AM CDT, 20 hours 15 minutes before
TXZ171>173-183>194-202>209-217>225-228-261100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 AM CDT SUN MAY 25 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ALONG AND NORTH OF A
LINE FROM COMSTOCK TO ROCKSPRINGS TO LEAKEY TO KERRVILLE TO BOERNE
TO BLANCO TO AUSTIN AND TAYLOR.  STORMS FORMING LATE THIS AFTERNOON
WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND DAMAGING WINDS.
THE STORMS WILL CONTINUING INTO THE LATE NIGHT AND MONDAY MORNING.
IN ADDITION TO WIND AND HAIL...SPOTTY HEAVY RAIN IS POSSIBLE IN THE
STORMS.  SOME AREAS COULD RECEIVE UP TO 2 INCHES OF RAIN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
A COOL FRONT WILL MOVE INTO SOUTH CENTRAL TEXAS TONIGHT AND BECOME
STATIONARY NEAR THE COASTAL PLAINS ON MONDAY. AS A SERIES OF UPPER
LEVEL DISTURBANCES APPROACH FROM THE WEST TUESDAY INTO WEDNESDAY...
STRONG THUNDERSTORMS WILL BE POSSIBLE AGAIN. LITTLE OR NO
SIGNIFICANT RAIN IS EXPECTED ON THURSDAY AND FRIDAY.  A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IS EXPECTED AGAIN ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED LATER THIS EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 10:15 PM CDTFlash Flood WarningEWXVal Verde2 hr
May 26, 12:10 AM CDTFlash Flood WarningEWXEdwards, Val Verde2 hr

Nearby

Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003

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.