Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 85, NWS San Angelo, TX

October 11, 20035 counties in Texas

NWS San Angelo, TX issued this flash flood warning at Oct 11, 2003, 9:59 AM CDT for 5 counties in Texas. It was in force for 3 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
Oct 11, 2003, 9:59 AM CDT (14:59 UTC)
Expired
Oct 11, 2003, 1:00 PM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

Counties Crockett County, TX, Irion County, TX, Schleicher County, TX, Sutton County, TX, Tom Green 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

Midland Regional, TX (KMAF), launched 12:00Z, 3.0 hours before the alert went out and 149 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, Midland Regional, TX at 12:00Z on 2003-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 765 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, Midland Regional, TX at 12:00Z on 2003-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939587897Sfc1 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
765 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
-7 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 111506
FFWSJT
TXC105-235-413-435-451-111800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
959 AM CDT SAT OCT 11 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TOM GREEN COUNTY IN SOUTHWEST TEXAS
  IRION COUNTY IN SOUTHWEST TEXAS
  SCHLEICHER COUNTY IN SOUTHWEST TEXAS
  CROCKETT COUNTY IN SOUTHWEST TEXAS
  SUTTON COUNTY IN SOUTHWEST TEXAS

* UNTIL 100 PM CDT

* AT 956 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SOLID 
  AREA OF HEAVY RAIN LOCATED WEST OF HIGHWAY 277 FROM SAN ANGELO TO 
  SONORA...MOVING NORTHEAST AT 20 MPH.

* THE FLASH FLOOD WARNING INCLUDES THE FOLLOWING MAJOR TOWNS...
  OZONA...SONORA...BARNHART...ELDORADO...MERTZON...
  CHRISTOVAL...AND SAN ANGELO.

* RAINFALL TOTALING A HALF TO ONE AND A HALF INCHES HAS FALLEN IN 
  THE WARNED AREA...WITH ADDITIONAL RAINFALL UP TO 3 INCHES EXPECTED 
  THROUGH 100 PM CDT.

TURN AROUND DONT DROWN DO NOT DRIVE INTO AREAS WHERE WATER COVERS
THE ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW SAFE PASSAGE.
REMEMBER...MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3093 10182 3033 10126 3037 10042 3155 10020
          3154 10113 3105 10123 3086 10141

$$

GUERRERO/26
3 follow-up statements
000 
WGUS74 KSJT 111613
FFSSJT
TXC105-235-413-435-451-111800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1105 AM CDT SAT OCT 11 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR TOM 
GREEN...IRION...CROCKETT...SCHLEICHER...AND SUTTON COUNTIES
UNTIL 100 PM CDT...

AT 1055 AM CDT...THE CROCKETT COUNTY SHERIFFS OFFICE REPORTED
THAT HIGHWAY 163 LOCATED 20 MILES SOUTH OF OZONA IS CLOSED DUE TO 
FAST MOVING WATER OVER THE ROAD.  

AT 1100 AM CDT...SAN ANGELO POLICE REPORTED SEVERAL LOW WATER CROSSINGS 
IN THE CITY WERE FLOODED AND WERE BEING BARRICADED.  

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DONT BECOME
A STATISTIC...TURN AROUND...DONT DROWN...WHEN YOU COME TO A FLOODED 
LOW WATER CROSSING.

AT 1112 AM...THE LEADING EDGE OF ANOTHER BAND OF HEAVY RAIN 
STRETCHED FROM BIG LAKE...TO MERTZON...TO CHRISTOVAL AND WAS 
MOVING NORTHEAST AT 20 MPH.

DO NOT ATTEMPT TO ROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER 
COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A 
SMALL ONE...ON FOOT.

$$

26/GUERRERO
000 
WGUS74 KSJT 111619 CCA
FFSSJT
TXC105-235-413-435-451-111800-

FLASH FLOOD STATEMENT...CORRECTED SPELLING IN LAST PAR
NATIONAL WEATHER SERVICE SAN ANGELO TX
1120 AM CDT SAT OCT 11 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR TOM 
GREEN...IRION...CROCKETT...SCHLEICHER...AND SUTTON COUNTIES
UNTIL 100 PM CDT...

AT 1055 AM CDT...THE CROCKETT COUNTY SHERIFFS OFFICE REPORTED
THAT HIGHWAY 163 LOCATED 20 MILES SOUTH OF OZONA IS CLOSED DUE TO 
FAST MOVING WATER OVER THE ROAD.  

AT 1100 AM CDT...SAN ANGELO POLICE REPORTED SEVERAL LOW WATER 
CROSSINGS IN THE CITY WERE FLOODED AND WERE BEING BARRICADED.  

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DONT BECOME
A STATISTIC...TURN AROUND...DONT DROWN...WHEN YOU COME TO A FLOODED 
LOW WATER CROSSING.

AT 1112 AM...THE LEADING EDGE OF ANOTHER BAND OF HEAVY RAIN 
STRETCHED FROM BIG LAKE...TO MERTZON...TO CHRISTOVAL AND WAS 
MOVING NORTHEAST AT 20 MPH.

DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER 
COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A 
SMALL ONE...ON FOOT.

$$

26/GUERRERO
000 
WGUS74 KSJT 111654
FFSSJT
TXC435-111800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1150 AM CDT SAT OCT 11 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR SUTTON COUNTY UNTIL 
100 PM CDT...
...THIS WARNING MAY HAVE TO BE EXTENDED...

AT 1148 AM CDT...DOPPLER RADAR ESTIMATED THAT THE LEADING EDGE OF 
VERY HEAVY RAIN WAS APPROACHING SONORA FROM THE SOUTH...MOVEMENT WAS 
NORTHEAST AT 20 MPH.  ANOTHER 2 INCHES OF HEAVY RAIN IS POSSIBLE 
THROUGH 1 PM CDT ACROSS SUTTON COUNTY.  

THIS NEXT BAND OF VERY HEAVY RAIN WILL CONTINUE TO PRODUCE FLOODING 
OF LOW WATER CROSSINGS...DRAWS...AND POOR DRAINAGE AREAS.

REMEMBER IF YOU ENCOUNTER A FLOODED ROAD...TURN AROUND...DONT DROWN.

$$

26/GUERRERO

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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 11, 9:00 AM CDT, 59 minutes earlier.

Area forecast discussion, Oct 11, 9:00 AM CDT, 59 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
900 AM CDT SAT OCT 11 2003

.CURRENT...COMPLEX OF SHOWERS AND THUNDERSTORMS APPROACHING THE AREA
AT THIS TIME. MODELS STILL SHOW A SIGNIFICANT FLOODING EVENT SHAPING
UP FOR THE SOUTHERN COUNTIES AND WILL BE UPDATING ZONES AND WILL BE
ISSUING A FLASH FLOOD WATCH THROUGH TONIGHT FOR THE SOUTHERN HALF OF
THE FORECAST AREA AT THIS TIME AND DECIDE OTHER AREAS AT LATER TIME
IF NEEDED.

FLOOD WATCH WILL BE COMMING OUT SHORTLY...BUT WILL NEED TO DO SOME
SERIOUS WORK ON THE GRIDS...SO IT MAY BE AN HOUR BEFORE NEW ZONES
COME OUT.

27/BRAZZELL

CURRENT...SATELLITE IMAGERY INDICATING A CONVECTIVE COMPLEX
DEVELOPING OVER THE BIG BEND. AT THE SURFACE...DEWPOINTS REMAIN IN
THE MID 60S. SURFACE ANALYSIS INDICATES COLD FRONT ABOUT TO PUSH
INTO THE TEXAS PANHANDLE.

DAYS 1-3...MODELS CONTINUE TO PRESENT DIVERGENT SOLUTIONS. THE AVN
CONTINUES TO BE MORE AGGRESSIVE WITH MOISTURE...POPS...AND COOLER
TEMPERATURES. WILL TREND FORECAST PACKAGE TOWARD THE AVN.
HOWEVER...BELIEVE SLIGHTLY LOWER POPS...FOR THE FIRST TWO
PERIODS...THAN THAT WHICH MAV MOS CURRENTLY PRESENTS BEST GIVEN
DEGREE OF UNCERTAINTY. MODELS ALSO INDICATE MOSTLY CLOUDY TO CLOUDY
SKIES WILL LINGER THROUGH TONIGHT BEFORE GRADUALLY CLEARING THROUGH
MONDAY AS DRIER AIR MOVES INTO TEXAS BEHIND THE FRONT.

DAYS 4-7...AGAIN...NO MAJOR CHANGES HERE WITH MAIN FOCUS ON THE
SHORT TERM.

CCF PRELIMS...

ABI 075/053/072/053/078 46211
SJT 076/055/071/053/079 67421
JCT 075/063/072/058/078 77642

.SJT...FFA MERTZON...SAN ANGELO...SAN SABA SOUTH.

23/HUBER
Hazardous weather outlook, Oct 11, 5:30 AM CDT, 4 hours 29 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-121030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
530 AM CDT SAT OCT 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

A COLD FRONT PUSHING INTO WEST CENTRAL TEXAS TODAY WILL COMBINE WITH
ABUNDANT MOISTURE TO CREATE A GOOD CHANCE FOR SHOWERS AND
THUNDERSTORMS THAT COULD PRODUCE LOCALLY HEAVY RAINFALL. UPPER LEVEL
DISTURBANCES MOVING INTO THE AREA FROM MEXICO WILL ENHANCE
THUNDERSTORM DEVELOPMENT. NO SEVERE WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...

CHANCES FOR RAINFALL WILL CONTINUE INTO SUNDAY BUT DRIER AIR WILL
FILTER INTO THE AREA ON MONDAY BRINGING A MORE FALL LIKE WEATHER
PATTERN FOR THE COMING WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

15

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 11, 11:21 AM CDTFlash Flood WarningSJTRunnels6 hr
Oct 11, 11:33 AM CDTFlash Flood WarningSJTColeman6 hr
Oct 11, 12:25 PM CDTFlash Flood WarningSJTMenard6 hr
Oct 11, 12:59 PM CDTFlash Flood WarningSJTConcho, Tom Green4 hr
Oct 11, 1:00 PM CDTFlash Flood WarningSJTKimble, Schleicher, Sutton6 hr
Oct 11, 1:45 PM CDTFlash Flood WarningSJTBrown6 hr
Oct 11, 2:35 PM CDTFlash Flood WarningSJTMcCulloch, Mason, San Saba5 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.