Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 74, NWS San Angelo, TX

September 14, 2003Crockett County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 14, 2003, 8:55 AM CDT for Crockett 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
Sep 14, 2003, 8:55 AM CDT (13:55 UTC)
Expired
Sep 14, 2003, 11:00 AM CDT
In force
2 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Crockett 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 12:00Z, 1.9 hours before the alert went out and 140 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 2003-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2012 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, Del Rio, TX at 12:00Z on 2003-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
2012 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
72 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 KSJT 141400
FFWSJT
TXC105-141600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
855 AM CDT SUN SEP 14 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWEST CROCKETT COUNTY IN WEST CENTRAL TEXAS

* UNTIL 1100 AM CDT

* AT 850 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAIN OVER SOUTHWEST CROCKETT COUNTY...OR ABOUT 32 MILES      
  SOUTHWEST OF OZONA...MOVING SOUTH AT 15 MPH.

* RAINFALL TOTALING 1 TO 3 INCHES HAS FALLEN IN THE WARNED           
  AREA...WITH ADDITIONAL RAINFALL UP TO 2 INCHES EXPECTED            
  THROUGH 1100 AM CDT.

* THE AREAS THAT WILL BE MOST AFFECTED BY FLASH FLOODING WILL BE     
  SOUTH OF INTERSTATE 20...ALONG COUNTY HIGHWAY 405 AND RANCH ROAD   
  2083 TO THE VAL VERDE COUNTY LINE.

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 3067 10120 3071 10170 3028 10173 3029 10125

$$

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 Sep 14, 3:00 AM CDT, 5 hours 55 minutes earlier.

Area forecast discussion, Sep 14, 3:00 AM CDT, 5 hours 55 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
300 AM CDT SUN SEP 14 2003

CONVECTION CONTINUES TO FIRE ALONG COLD FRONTAL BOUNDARY WHICH HAS
SLOWED CONSIDERABLY SINCE ENTERING THE CWA. BEST ONGOING ACTIVITY IS
ALONG WESTERN FLANK WEST OF THE CWA AND GIVEN SLOW MOVEMENT OF
STORMS RADAR ESTIMATES FOR RAINFALL HAVE BEEN IMPRESSIVE SHOWING
ISOLATED 4 TO 6 INCH AMOUNTS WEST OF THE CWA. COLD FRONT NOW
ESSENTIALLY BISECTS THE CWA AND IS LOCATED JUST NORTH OF SJT WITH
GOOD DEVELOPMENT NOW ONGOING NORTH OF SJT. FRONT IS FCSTD TO SLOWLY
DRIFT SOUTH AND SHOULD BE NEAR I10 BY DAYBREAK WITH AREAL COVERAGE
OF RAINFALL INCREASING AS MCS EXPANDS. MODELS ARE IN AGREEMENT ON A
GOOD POST FRONTAL RAIN EVENT FOR WEST CENTRAL TEXAS TODAY...
DIFFERENCES IN MODELS ARE IN TIMING AND AMOUNT OF RAINFALL. ETA HAS
BEST LIFT ABOUT 6 HRS EARLIER THAN AVN...AVN SHOWING BEST LIFT
AROUND NOON. AS TO AMOUNTS... ETA HAS A 1 INCH BULLSEYE OVER THE
CONCHO VALLEY AROUND DAYBREAK WHILE AVN IS MUCH MORE BULLISH WITH A
NEARLY 3 INCH BULLSEYE OVER THE CONCHO VALLEY AROUND NOON. IN ANY
EVENT WILL RAISE POPS FOR TODAY WITH PRECIP ENDING FROM NORTH TO
SOUTH THIS EVENING.

UPPER HIGH PRESSURE BUILDS INTO THE AREA TOMORROW WITH DRY
CONDITIONS AND A WARMING TREND THROUGH MOST OF THE COMING WEEK. COLD
FRONT TOWARD THE END OF THE WORK WEEK WILL BRING AFTERNOON TEMPS
BELOW SEASONAL NORMS INTO NEXT WEEKEND.

PRELIMS...
ABI 074/056/083/061 2100
SJT 075/056/083/060 5100
JCT 077/058/084/060 72-0

.SJT...NONE.

15
Hazardous weather outlook, Sep 14, 5:30 AM CDT, 3 hours 25 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-151030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
530 AM CDT SUN SEP 14 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

A COLD FRONT WILL PASS THROUGH WEST CENTRAL TEXAS BY LATE THIS
MORNING KICKING OFF SHOWERS AND THUNDERSTORMS AS IT DRIFTS SLOWLY
SOUTHWARD. POST-FRONTAL SHOWERS AND THUNDERSTORMS WILL OCCUR OVER
MUCH OF THE AREA INTO LATE AFTERNOON. NONE OF THE THUNDERSTORMS ARE
EXPECTED TO BECOME SEVERE.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.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
Sep 14, 8:07 AM CDTFlash Flood WarningSJTMcCulloch, Mason, San Saba3 hr
Sep 14, 10:45 AM CDTFlash Flood WarningSJTMason, San Saba4 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.