Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 82, NWS Austin/San Antonio, TX

September 14, 2003Caldwell County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 14, 2003, 12:25 PM CDT for Caldwell 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, 12:25 PM CDT (17:25 UTC)
Expired
Sep 14, 2003, 2:30 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Caldwell County, TX

The radar

The Austin/San Antonio radar (KEWX), 36 km from the middle of the area, began a volume at 17:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 5.4 hours before the alert went out and 236 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 2003-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2752 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 2003-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
2752 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 141727
FFWSAT
TXC055-141930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1225 PM CDT SUN SEP 14 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 230 PM CDT

* AT 1225 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY    
  RAIN 6 MILES SOUTHEAST OF LOCKHART...MOVING EAST AT 10 TO 15 MPH.
  RAINFALLS RATES WITH THIS THUNDERSTORM ARE ESTIMATED AT 2.5 INCHES 
  AN HOUR.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  LOCKHART

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.


LAT...LON 2983 9790 2967 9762 2979 9736 3003 9766

$$
1 follow-up statement
000 
WGUS74 KEWX 141811
FFSSAT
TXC055-142015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
109 PM CDT SUN SEP 14 2003

...THE FLASH FLOOD WARNING FOR CALDWELL COUNTY HAS BEEN CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE HEAVY RAINFALL 
HAD ENDED ACROSS THE CALDWELL COUNTY... AND THE FLOOD THREAT WAS  
DIMINISHING. LIGHT TO MODERATE RAIN WILL CONTINUE ACROSS THE AREA
FOR THE NEXT FEW HOUES SOME MINOR FLOODING MAY CONTINUE...BUT THE 
THREAT OF SERIOUS FLOODING HAS ENDED...AND THE FLASH FLOOD WARNING 
HAS BEEN CANCELLED.

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
Sep 14, 8:46 AM CDTSevere Thunderstorm WarningEWXLlano59 min

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; radar from the NEXRAD Level II archive.