Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 150, NWS Austin/San Antonio, TX

June 16, 1997Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 16, 1997, 5:05 AM CDT for Val Verde County, Texas. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 16, 1997, 5:05 AM CDT (10:05 UTC)
Expired
Jun 16, 1997, 6:00 AM CDT
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Val Verde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 10.1 hours before the alert went out and 66 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 00:00Z on 1997-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4168 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 00:00Z on 1997-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.19395878Sfc1 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
4168 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
2.9
Supercell composite
10.8

Open this sounding in Storm Lab

The text

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

323 
WUUS1 KSAT 161007 RRA
SVRSAT
TXC465-161100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
505 AM CDT MON JUN 16 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...VAL VERDE COUNTY
 
AT 5 AM RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHERN VAL VERDE
COUNTY SOUTH OF PANDALE MOVING TO THE EAST AT 20 MPH. THIS STORM IS
LIKELY PRODUCING HAIL. DAMAGING WINDS ARE ALSO POSSIBLE WITH THIS STORM.
THIS STORM WILL APPROACH JUNO BETWEEN 520 AND 530 AM.
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 11:06 PM CDTSevere Thunderstorm WarningEWXVal Verde69 min
Jun 16, 12:07 AM CDTSevere Thunderstorm WarningEWXVal Verde68 min
Jun 16, 1:45 AM CDTFlash Flood WarningEWXVal Verde2 hr
Jun 16, 4:11 AM CDTFlash Flood WarningEWXVal Verde3 hr
Jun 16, 5:57 AM CDTSevere Thunderstorm WarningEWXEdwards63 min
Jun 16, 6:45 AM CDTFlash Flood WarningEWXEdwards, Real3 hr
Jun 16, 7:18 AM CDTFlash Flood WarningEWXVal Verde3 hr
Jun 16, 7:33 AM CDTSevere Thunderstorm WarningEWXKerr, Real57 min
Jun 16, 7:43 AM CDTFlash Flood WarningEWXBandera, Kerr3 hr
Jun 16, 8:24 AM CDTFlash Flood WarningEWXKinney2 hr
Jun 16, 8:38 AM CDTFlash Flood WarningEWXUvalde6 hr
Jun 16, 9:40 AM CDTFlash Flood WarningEWXEdwards, Real2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

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.