Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 166, NWS Austin/San Antonio, TX

August 11, 2003DeWitt County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 11, 2003, 4:13 PM CDT for DeWitt County, Texas. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 11, 2003, 4:13 PM CDT (21:13 UTC)
Expired
Aug 11, 2003, 5:15 PM CDT
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County DeWitt County, TX

The radar

The Austin/San Antonio radar (KEWX), 88 km from the middle of the area, began a volume at 21:15 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 11, 2:35 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.2 hours before the alert went out and 152 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 2003-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1123 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 2003-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 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
1123 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
798 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
21 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 
WUUS54 KEWX 112113
SVRSAT
TXC123-112215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
412 PM CDT MON AUG 11 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  DEWITT

* UNTIL 515 PM CDT

* AT 412 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER HOCHHEIM...OR ABOUT 6 MILES SOUTHWEST     
  OF SHINER...MOVING SOUTH AT 15 MPH. THIS STORM HAS THE CAPABILITY  
  OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...VERY HEAVY RAIN  
  AND DEADLY CLOUD TO GROUND LIGHTNING.

* THE SEVERE THUNDERSTORM WILL BE...
  4 MILES EAST OF HOCHHEIM AT 420 PM
  6 MILES NORTHEAST OF CUERO AT 515 PM

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  HOCHHEIM
  CUERO

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.


LAT...LON 2903 9770 2889 9753 2914 9707 2937 9724

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:04 PM CDTSevere Thunderstorm WarningEWXVal Verde56 min
Aug 11, 2:11 PM CDTSevere Thunderstorm WarningEWXHays64 min
Aug 11, 2:12 PM CDTSevere Thunderstorm WarningEWXHays63 min
Aug 11, 2:18 PM CDTSevere Thunderstorm WarningEWXComal57 min
Aug 11, 2:36 PM CDTSevere Thunderstorm WarningEWXFayette, Lee54 min
Aug 11, 3:00 PM CDTSevere Thunderstorm WarningEWXBexar60 min
Aug 11, 3:08 PM CDTSevere Thunderstorm WarningEWXGuadalupe52 min
Aug 11, 3:32 PM CDTSevere Thunderstorm WarningEWXMedina58 min
Aug 11, 3:41 PM CDTTornado WarningEWXMedina34 min
Aug 11, 3:45 PM CDTSevere Thunderstorm WarningEWXFayette, Lavaca60 min
Aug 11, 3:58 PM CDTSevere Thunderstorm WarningEWXGonzales62 min
Aug 11, 4:05 PM CDTSevere Thunderstorm WarningEWXFayette, Lavaca40 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm 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.