Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Austin/San Antonio, TX

February 20, 2003Bastrop County, Caldwell County, Lee County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Feb 20, 2003, 9:14 AM CST for Bastrop County, Caldwell County, Lee County, Texas. It was in force for 4 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
Feb 20, 2003, 9:14 AM CST (15:14 UTC)
Expired
Feb 20, 2003, 1:30 PM CST
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bastrop County, TX, Caldwell County, TX, Lee County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 3.2 hours before the alert went out and 264 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, Corpus Christi, TX at 12:00Z on 2003-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 353 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, Corpus Christi, TX at 12:00Z on 2003-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
353 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 201516
FFWSAT
TXC021-055-287-201930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
914 AM CST THU FEB 20 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  LEE
  BASTROP
  CALDWELL

* UNTIL 130 PM CST

* AT 914 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  BETWEEN LULING AND LOCKHART...AS WELL AS FROM BASTROP TO      
  LEXINGTON...MOVING NORTHEAST AT 20 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  LOCKHART
  CEDAR CREEK
  BASTROP
  CAMP SWIFT
  CIRCLE D-KC ESTATES
  PAIGE

RAINFALL RATES OF 1 TO 3 INCHES PER HOUR WERE NOTED AND WILL MOVE 
OVER THE SAME AREAS THE REMAINDER OF THIS MORNING.  

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

LAT...LON 2985 9774 2972 9759 3029 9674 3051 9693
          3039 9736

$$
5 follow-up statements
000 
WGUS74 KEWX 201541
FFSSAT
TXC021-055-287-201630-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
937 AM CST THU FEB 20 2003

...A FLASH FLOOD WARNING CONTINUES FOR LEE...BASTROP AND CALDWELL    
   COUNTIES UNTIL 130 PM CST...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS 
PRODUCING VERY HEAVY RAINFALL LOCATED FROM PRAIRIE LEA TO LOCKHART 
AND BASTROP.  RAINFALL RATES OF 1 TO 1.5 INCHES AN HOUR ARE 
OCCURRING ACROSS THE WARNED COUNTIES.  MOVEMENT IS NORTHEAST AT 20 
MPH.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF 
SMALL CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING AREAS.

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.

$$
000 
WGUS74 KEWX 201612
FFSSAT
TXC021-031-055-091-209-259-287-453-491-201700-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1005 AM CST THU FEB 20 2003

...A FLASH FLOOD WARNING CONTINUES FOR WILLIAMSON...TRAVIS...LEE...  
   BLANCO...BASTROP...HAYS...KENDALL...CALDWELL AND COMAL COUNTIES   
   UNTIL 130 PM CST...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS 
PRODUCING VERY HEAVY RAINFALL CONTINUING ACROSS COMAL...HAYS...
BASTROP AND LEE COUNTIES.  RAINFALL RATES OF 1 TO 1.5 INCHES AN 
HOUR WERE ESTIMATED BY DOPPLER RADAR IN THE STRONGER STORMS.
MOVEMENT IS NORTHEAST AT 20 MPH.

A NUMBER OF CREEKS ARE ON THE RISE ACROSS TRAVIS COUNTY AND 
ADDITIONAL HEAVY RAINFALL IS EXPECTED TO MOVE INTO THE AUSTIN AREA 
BY 1030 AM.    

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.

$$
000 
WGUS74 KEWX 201704
FFSSAT
TXC021-031-055-091-209-259-287-453-491-201800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1103 AM CST THU FEB 20 2003

...A FLASH FLOOD WARNING CONTINUES FOR WILLIAMSON...TRAVIS...LEE...  
   BLANCO...BASTROP...HAYS...KENDALL...CALDWELL AND COMAL COUNTIES   
   UNTIL 130 PM CST...

...FLASH FLOOD WATCH IN EFFECT TODAY AND TONIGHT FOR ALL OF SOUTH    
   CENTRAL TEXAS AND THE TEXAS HILL COUNTRY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS 
PRODUCING VERY HEAVY RAINFALL CONTINUING ACROSS HAYS...TRAVIS AND 
BASTROP COUNTIES.  RAINFALL RATES OF 1 TO 1.5 INCHES AN HOUR WERE 
ESTIMATED BY DOPPLER RADAR IN THESE STRONGER STORMS. MOVEMENT IS 
NORTHEAST AT 20 MPH.

THE STORMS ARE BEGINNING TO WEAKEN AND MOVE NORTHEAST OUT OF THE 
WARNED COUNTIES.  HOWEVER EXCESSIVE RUNOFF FOR THE NEXT COUPLE OF 
HOURS FROM THESE STORMS WILL CONTINUE TO CAUSE FLASH FLOODING OF 
SMALL CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING AREAS.

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.

$$
000 
WGUS74 KEWX 201801
FFSSAT
TXC021-031-055-091-209-259-287-453-491-201900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1201 PM CST THU FEB 20 2003

...A FLASH FLOOD WARNING CONTINUES FOR WILLIAMSON...TRAVIS...LEE...  
   BLANCO...BASTROP...HAYS...KENDALL...CALDWELL AND COMAL COUNTIES   
   UNTIL 130 PM CST...

...FLASH FLOOD WATCH IN EFFECT TODAY AND TONIGHT FOR ALL OF SOUTH    
   CENTRAL TEXAS AND THE TEXAS HILL COUNTRY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE HEAVY 
RAINS ACROSS THE WARNED COUNTIES HAVE TAPERED OFF DURING THE PAST 
HOUR.  HOWEVER ADDITIONAL SHOWERS AND THUNDERSTORMS PRODUCING LIGHT 
TO MODERATE RAINFALL WILL CONTINUE TO TRAIN ACROSS THE WARNED 
COUNTIES FOR AT LEAST THE NEXT 1 TO 2 HOURS. RAINFALL RATES OF ONE 
QUARTER TO THREE QUARTERS OF AN INCH AN HOUR WERE ESTIMATED BY 
DOPPLER RADAR. MOVEMENT IS NORTHEAST AT 25 MPH.

EXCESSIVE RUNOFF WILL CONTINUE FOR THE NEXT COUPLE OF HOURS FROM 
THESE STORMS.  THIS WILL RESULT IN CONTINUED FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES AS WELL AS 
OTHER DRAINAGE AREAS AND LOW LYING AREAS.

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.

$$
000 
WGUS74 KEWX 201905
FFSSAT
TXC021-031-055-091-209-259-287-453-491-201930-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
100 PM PM CST THU FEB 20 2003

...A FLASH FLOOD WARNING CONTINUES FOR WILLIAMSON...TRAVIS...LEE...  
   BLANCO...BASTROP...HAYS...KENDALL...CALDWELL AND COMAL COUNTIES   
   UNTIL 130 PM CST...

...FLASH FLOOD WATCH IN EFFECT TODAY AND TONIGHT FOR ALL OF SOUTH    
   CENTRAL TEXAS AND THE TEXAS HILL COUNTRY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT HEAVY RAINS 
CONTINUED TO MOVE ACROSS THE WARNED COUNTIES. ADDITIONAL SHOWERS AND 
THUNDERSTORMS PRODUCING LIGHT TO MODERATE RAINFALL ARE EXPECTED TO
TRAIN ACROSS THE WARNED COUNTIES FOR THE NEXT FEW HOURS.
RAINFALL RATES OF ONE QUARTER TO THREE QUARTERS INCHES AN HOUR ARE 
ESTIMATED BY DOPPLER RADAR. MOVEMENT IS NORTHEAST AT 25 MPH.

EXCESSIVE RUNOFF WILL CONTINUE FOR THE NEXT FEW HOURS FROM THESE 
STORMS. THIS WILL RESULT IN CONTINUED FLASH FLOODING OF SMALL CREEKS 
AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES AS WELL AS OTHER 
DRAINAGE AREAS AND LOW LYING AREAS.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 6:44 AM CSTSevere Thunderstorm WarningEWXBexar, Wilson46 min
Feb 20, 7:29 AM CSTFlash Flood WarningEWXBlanco, Comal, Hays, Kendall6 hr
Feb 20, 7:34 AM CSTFlash Flood WarningEWXTravis, Williamson6 hr
Feb 20, 9:23 AM CSTSevere Thunderstorm WarningEWXGonzales52 min
Feb 20, 11:15 AM CSTSevere Thunderstorm WarningEWXLavaca45 min
Feb 20, 1:25 PM CSTFlash Flood WarningEWXBastrop, Blanco, Caldwell, Comal, Guadalupe, Hays and 3 more4 hr
Feb 20, 4:33 PM CSTFlash Flood WarningEWXFayette, Gonzales57 min
Feb 20, 5:20 PM CSTFlash Flood WarningEWXBlanco, Caldwell, Comal, Guadalupe, Hays, Travis and 1 more3 hr
Feb 20, 5:25 PM CSTFlash Flood WarningEWXBastrop, DeWitt, Fayette, Gonzales, Lavaca, Lee3 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.