Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 56, NWS Austin/San Antonio, TX

May 6, 2003Bandera County, Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 6, 2003, 1:21 PM CDT for Bandera County, Real County, Texas. It was in force for 54 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
May 6, 2003, 1:21 PM CDT (18:21 UTC)
Expired
May 6, 2003, 2:15 PM CDT
In force
54 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bandera County, TX, Real County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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, 6.4 hours before the alert went out and 134 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 2003-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5257 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 2003-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
5257 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
4.7
Supercell composite
20.1

Open this sounding in Storm Lab

The text

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

328 
WUUS54 KEWX 061821
SVRSAT
TXC019-385-061915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
120 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  REAL
  BANDERA

* UNTIL 215 PM CDT

* AT 120 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER REAL COUNTY...OR ABOUT 33 MILES SOUTHWEST
  OF KERRVILLE...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
RURAL BANDERA COUNTY AT 130 PM

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.


LAT...LON 2994 9978 2982 9964 2983 9914

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 12:00 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, May 6, 12:00 PM CDT, 1 hour 21 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1200 PM CDT TUE MAY 6 2003

JUST SENT ANOTHER UPDATE TO COVER THROUGH THE AFTERNOON. ISOLD
SEVERE STORM ENTERING NRN KERR COUNTY IS THE MAIN PLAYER FOR THE
NEXT HOUR OR SO. THE MAIN CONCERN IS WHEN THE DRYLINE...BOUNDARIES
FROM STORMS EARLIER THIS MORNING...AND SFC HEATING COMBINE THIS
AFTERNOON. SHEAR IS AVAILABLE FOR SUPERCELLS...AND THE CAPE IS
DOWNRIGHT SCARY IF THE STORMS BECOME SFC BASED.

.EWX...NONE.

26/02/PM

UPDATE PRELIMS...
AUS 093/074 093/074 092 51000
DRT 102/074 099/075 100 00000
SAT 094/075 092/075 092 20000
Hazardous weather outlook, May 6, 9:10 AM CDT, 4 hours 11 minutes before
TXZ171>173-183>194-202>209-217>225-228-071100-

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
910 AM CDT TUE MAY 6 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY
SEVERE THUNDERSTORMS ARE POSSIBLE TODAY OVER THE NORTHEASTERN HALF
OF SOUTH CENTRAL TEXAS...PRIMARILY NORTH AND EAST OF INTERSTATE 10.
THE MAIN SEVERE THREAT WILL BE LARGE HAIL...ALTHOUGH DAMAGING WINDS
ARE POSSIBLE. THERE IS LITTLE OR NO RISK FOR TORNADOES. THE MAIN
SEVERE THREAT TIME WILL BE FROM 2 TO 6 PM...ALTHOUGH SEVERE STORMS
ARE POSSIBLE FROM MID-MORNING INTO EARLY EVENING.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

STATIONARY SPOTTERS WILL BE HELPFUL FOR WIND AND HAIL REPORTS.
HOWEVER...SPOTTERS AND HAM RADIO OPERATORS SHOULD CONTINUE WITH
NORMAL ACTIVITIES BUT PAY CLOSE ATTENTION TO CONDITIONS.

In the hours before

Special weather statement, May 6, 9:25 AM CDT, 3 hours 56 minutes before
TXZ171>173-188-190-192>194-062000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
925 AM CDT TUE MAY 6 2003

...SEVERE THUNDERSTORM WATCH 266 IN EFFECT FOR NORTHERN PORTIONS OF
SOUTH CENTRAL TEXAS UNTIL 3 PM...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PORTIONS OF SOUTH CENTRAL TEXAS FROM 910 AM UNTIL 3 PM TODAY.
COUNTIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH INCLUDE...
BASTROP...BLANCO...BURNET...GILLESPIE...LEE...LLANO...TRAVIS...AND
WILLIAMSON.

RESIDENTS SHOULD RAISE THEIR LEVEL OF AWARENESS FOR SEVERE
THUNDERSTORMS TODAY. HAVE A NOAA WEATHER RADIO HANDY OR STAY TUNED
TO LOCAL TV AND RADIO STATIONS FOR THE LATEST FORECASTS...
STATEMENTS...AND POSSIBLE WARNINGS.

26/JWZ

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 8:27 AM CDTSevere Thunderstorm WarningEWXBlanco, Kendall63 min
May 6, 11:46 AM CDTSevere Thunderstorm WarningEWXKerr59 min
May 6, 2:28 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee62 min
May 6, 3:34 PM CDTSevere Thunderstorm WarningEWXFayette56 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.