Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 73, NWS San Angelo, TX

September 14, 2003McCulloch County, Mason County, San Saba County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 14, 2003, 8:07 AM CDT for McCulloch County, Mason County, San Saba County, 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
Sep 14, 2003, 8:07 AM CDT (13:07 UTC)
Expired
Sep 14, 2003, 11:00 AM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

Counties Mason County, TX, McCulloch County, TX, San Saba 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, 1.1 hours before the alert went out and 251 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 141307
FFWSJT
TXC307-319-411-141600-

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

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MCCULLOCH COUNTY IN WEST CENTRAL TEXAS
  SAN SABA COUNTY IN WEST CENTRAL TEXAS
  MASON COUNTY IN WEST CENTRAL TEXAS

* UNTIL 1100 AM CDT

* AT 757 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN EXTENDING FROM 10 MILES NORTHWEST OF SAN SABA TO VOCA TO      
  STREETER...MOVING SOUTHEAST AT 20 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
   KATEMCY AT 810 AM CDT
   FREDONIA...SAN SABA...STREETER AT 820 AM CDT
   MASON AT 835 AM CDT

* RAINFALL TOTALING 1 TO 3 INCHES HAS FALLEN ACROSS NORTHERN SAN 
SABA...MUCH OF MCCULLOCH...AND NORTHERN MASON COUNTIES SINCE 6 
AM...WITH ADDITIONAL RAINFALL UP TO 2 INCHES EXPECTED THROUGH 1100 
AM CDT. WITH THE HEAVY RAINFALL FROM EARLIER THIS WEEK...THIS 
ADDITIONAL RAIN WILL QUICKLY RUN OFF AND SWELL POOR DRAINAGE AREAS 
ACROSS THE AREA AND AREA CREEKS AND STREAMS WILL QUICKLY FILL WITH 
SWIFTLY FLOWING FLOODWATER.

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 3147 9894 3097 9944 3064 9944 3059 9905
          3097 9900 3099 9853

$$

07
1 follow-up statement
000 
WGUS74 KSJT 141515
FFSSJT
TXC307-319-411-141600-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1010 AM CDT SUN SEP 14 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MCCULLOCH...SAN SABA 
AND MASON COUNTY UNTIL 1100 AM CDT...

AT 1005 AM CDT...DOPPLER RADAR ESTIMATED THAT 3 TO 5 INCHES OF RAIN 
HAVE FALLEN OVER THE WARNED AREA SINCE 800 AM...WITH ADDITIONAL 
RAINFALL OF 1 TO 3 INCHES EXPECTED BY 1100 AM CDT. THIS WILL 
CONTINUE TO PRODUCE FLOODING OF LOW WATER CROSSINGS AND POOR 
DRAINAGE AREAS. AS OF 1000 AM...NUMEROUS ROADS ACROSS EASTERN 
MCCULLOCH AND WESTERN SAN SABA COUNTIES ARE FLOODED AT THIS TIME. 
PLEASE DO NOT TRY GO AROUND BARRICADES.

IN ADDITION THE FLASH FLOOD WARNING WILL PROBABLY HAVE TO BE 
EXTENDED FOR SAN SABA AND MASON COUNTIES.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. 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.

$$

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 7 minutes earlier.

Area forecast discussion, Sep 14, 3:00 AM CDT, 5 hours 7 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, 2 hours 37 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, 8:55 AM CDTFlash Flood WarningSJTCrockett2 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.