Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 91, NWS San Angelo, TX

October 11, 2003Brown County, Texas

NWS San Angelo, TX issued this flash flood warning at Oct 11, 2003, 1:45 PM CDT for Brown County, Texas. It was in force for 6 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, 1:45 PM CDT (18:45 UTC)
Expired
Oct 11, 2003, 7:30 PM CDT
In force
6 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Brown 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

Fort Worth, TX (KFWD), launched 12:00Z, 6.8 hours before the alert went out and 201 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, Fort Worth, TX at 12:00Z on 2003-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Fort Worth, TX at 12:00Z on 2003-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
832 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
4 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 111845
FFWSJT
TXC049-120030-

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

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BROWN COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 730 PM CDT

* AT 127 PM CDT...LAW ENFORCEMENT OFFICERS REPORTED THAT CREEKS AND 
DRAWS UPSTREAM OF LAKE BROWNWOOD BETWEEN CROSS CUT AND MAY ARE 
FLOWING BANKFULL.  GIVEN THAT THE AREA RECEIVED WIDESPREAD HEAVY 
RAINFALL IN EXCESS OF 3 INCHES JUST TWO DAYS AGO...THE GROUND IS 
SATURATED AND ANY ADDITIONAL RAINFALL WILL CAUSE THE CREEKS TO 
EXPERIENCE MORE RISES.

* RAINFALL TOTALING UP TO 1 INCH HAS FALLEN IN THE WARNED 
AREA...WITH ADDITIONAL RAINFALL UP TO 1 INCH EXPECTED THROUGH 730 
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 3156 9913 3172 9879 3203 9895 3204 9918

$$
JOHNSON
3 follow-up statements
000 
WGUS74 KSJT 111946
FFSSJT
TXC049-083-307-411-112100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
245 PM CDT SAT OCT 11 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR COLEMAN COUNTY UNTIL 
530 PM...AND FOR BROWN...MCCULLOCH...AND SAN SABA COUNTIES UNTIL 
730 PM CDT...

WIDESPREAD SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE HEARTLAND 
THIS AFTERNOON. THROUGH 4 PM...MODERATE TO HEAVY RAIN WILL OCCUR 
FROM BRADY TO SAN SABA...AND NORTHWARD TO BROWNWOOD. RAINFALL RATES 
OF UP TO ONE INCH AN HOUR ARE EXPECTED.

BY EARLY AFTERNOON...DOPPLER RADAR ESTIMATED THAT NEARLY TWO INCHES 
OF RAIN HAD FALLEN OVER PORTIONS OF THE HEARTLAND SINCE EARLY THIS 
MORNING. UP TO TWO INCHES OF ADDITIONAL RAIN IS EXPECTED BY THIS 
EVENING. THIS WILL CONTINUE TO PRODUCE FLOODING OF CREEKS...LOW 
WATER CROSSINGS...AND POOR DRAINAGE AREAS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN 
DEPTH BY FOOT OR BY AUTOMOBILE. TURN AROUND...DONT DROWN.

$$

09
000 
WGUS74 KSJT 112118
FFSSJT
TXC049-083-307-411-112215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
420 PM CDT SAT OCT 11 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR COLEMAN COUNTY UNTIL 
530 PM...AND FOR BROWN...MCCULLOCH...AND SAN SABA COUNTIES UNTIL 730 
PM...

SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE HEARTLAND LATE 
THIS AFTERNOON. THROUGH 530 PM...THE HEAVIEST RAIN WILL FALL FROM 
BRADY TO SAN SABA...WHERE RAINFALL RATES OF 1 INCH AN HOUR ARE 
POSSIBLE.

UP TO TWO INCHES OF RAIN HAS FALLEN ACROSS THE HEARTLAND 
TODAY...WITH ANOTHER INCH POSSIBLE THIS AFTERNOON. THIS WILL 
CONTINUE FLOODING OF LOW WATER CROSSINGS...AND POOR DRAINAGE AREAS.

REMEMBER...TURN AROUND...DONT DROWN. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATER OF UNKNOWN DEPTH.

$$

9
000 
WGUS74 KSJT 112222
FFSSJT
TXC049-307-411-120030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
525 PM CDT SAT OCT 11 2003

...FLASH FLOOD WARNINGS REMAINS IN EFFECT FOR BROWN...SAN SABA AND 
MCCULLOCH COUNTIES UNTIL 730 PM CDT...

AT 525 PM CDT...DOPPLER RADAR ESTIMATED THAT 1 TO 2 INCHES OF RAIN 
HAVE FALLEN OVER SOUTHERN MCCULLOCH AND SOUTHERN SAN SABA COUNTY 
THIS AFTERNOON. 

SHOWERS ACROSS MUCH OF BROWN AND SAN SABA COUNTIES WILL PRODUCE 
ANOTHER 1/4 INCH OF RAIN THROUGH 730 PM CDT...AS THEY MOVE EAST AT 
25 MPH. THIS WILL CONTINUE TO PRODUCE FLOODING OF LOW WATER 
CROSSINGS AND POOR DRAINAGE AREAS THIS EVENING.

SOME LOW WATER CROSSINGS IN BROWN COUNTY REMAIN FLOODED DUE TO HEAVY 
RAINFALL EARLIER THIS WEEK. THE ADDITIONAL RAINFALL WILL MAKE 
FLOODING CONDITIONS WORSE.

$$

04

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, 4 hours 45 minutes earlier.

Area forecast discussion, Oct 11, 9:00 AM CDT, 4 hours 45 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, 8 hours 15 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, 9:59 AM CDTFlash Flood WarningSJTCrockett, Irion, Schleicher, Sutton, Tom Green3 hr
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, 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.