Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 120, NWS Austin/San Antonio, TX

June 4, 1997Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 4, 1997, 8:56 PM CDT for Bexar County, Texas. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 4, 1997, 8:56 PM CDT (01:56 UTC)
Expired
Jun 4, 1997, 9:45 PM CDT
In force
49 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Bexar County, TX

What was reported inside it

TimeReportWhereRemark
Jun 4, 9:10 PM CDTHail 2.5Leon Spgs, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 1.9 hours before the alert went out and 223 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 00:00Z on 1997-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1022 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, Corpus Christi, TX at 00:00Z on 1997-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
1022 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1393 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

720 
WUUS1 KSAT 050153 RRA
SVRSAT
TXC029-050245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
856 PM CDT WED JUN 4 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHERN BEXAR COUNTY
 
AT 854 PM NATIONAL WEATHER SERVICE INDICATED A SEVERE THUNDERSTORM
NEAR FAIR OAKS RANCH JUST EAST OF I-10. PEOPLE IN THE PATH OF THIS
STORM CAN EXPECT VERY HEAVY RAIN ALONG WITH THE POSSIBILITY OF
LARGE HAIL.
 
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.
 
IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO
THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE
NATIONAL WEATHER SERVICE.

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.

In the hours before

Special weather statement, Jun 4, 5:50 PM CDT, 3 hours 6 minutes before
TXZ171>173-183>194-202>209-217>225-228-051045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
551 PM CDT WED JUN 4 1997

NO HAZARDOUS WEATHER IS EXPECTED IN SOUTH CENTRAL TEXAS...THE
TEXAS HILL COUNTRY OR EDWARDS PLATEAU TONIGHT OR THURSDAY.

A SMALL CLUSTER OF THUNDERSTORMS DEVELOPED ALONG A WIND SHIFT LINE
THIS AFTERNOON FROM SAN ANTONIO TO NEW BRAUNFELS.  THESE STORMS MOVED
SOUTHWARD AND WILL SLOWLY MOVE TOWARDS THE COASTAL PLAINS THIS
EVENING AND DISSIPATE AFTER SUNSET.  THE SAME PATTERN IS POSSIBLE
THURSDAY AFTERNOON WITH THE LOCATION OF SHOWER AND THUNDERSTORM
DEVELOPMENT HIGHLY DEPENDENT ON THE LOCATION OF WIND SHIFT LINES.

RAINFALL AMOUNTS THIS EVENING AND THURSDAY AFTERNOON WILL AVERAGE 1/4
INCH OR LESS IN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WITH
ISOLATED 1 INCH AMOUNTS POSSIBLE.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS...AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST
HAZARDOUS WEATHER NO LONGER IS EXPECTED.
Special weather statement, Jun 4, 5:51 PM CDT, 3 hours 5 minutes before
TXZ171>173-183>194-202>209-217>225-228-051045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
551 PM CDT WED JUN 4 1997

NO HAZARDOUS WEATHER IS EXPECTED IN SOUTH CENTRAL TEXAS...THE
TEXAS HILL COUNTRY OR EDWARDS PLATEAU TONIGHT OR THURSDAY.

A SMALL CLUSTER OF THUNDERSTORMS DEVELOPED ALONG A WIND SHIFT LINE
THIS AFTERNOON FROM SAN ANTONIO TO NEW BRAUNFELS.  THESE STORMS MOVED
SOUTHWARD AND WILL SLOWLY MOVE TOWARDS THE COASTAL PLAINS THIS
EVENING AND DISSIPATE AFTER SUNSET.  THE SAME PATTERN IS POSSIBLE
THURSDAY AFTERNOON WITH THE LOCATION OF SHOWER AND THUNDERSTORM
DEVELOPMENT HIGHLY DEPENDENT ON THE LOCATION OF WIND SHIFT LINES.

RAINFALL AMOUNTS THIS EVENING AND THURSDAY AFTERNOON WILL AVERAGE 1/4
INCH OR LESS IN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WITH
ISOLATED 1 INCH AMOUNTS POSSIBLE.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS...AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST
HAZARDOUS WEATHER NO LONGER IS EXPECTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 2:28 AM CDTSevere Thunderstorm WarningEWXTravis62 min
Jun 5, 4:31 AM CDTSevere Thunderstorm WarningEWXGonzales59 min
Jun 5, 2:39 PM CDTSevere Thunderstorm WarningEWXBandera, Real66 min
Jun 5, 2:52 PM CDTSevere Thunderstorm WarningEWXEdwards68 min
Jun 5, 3:34 PM CDTSevere Thunderstorm WarningEWXKerr56 min
Jun 5, 3:45 PM CDTSevere Thunderstorm WarningEWXReal60 min
Jun 5, 3:56 PM CDTSevere Thunderstorm WarningEWXBandera, Uvalde64 min
Jun 5, 4:32 PM CDTSevere Thunderstorm WarningEWXEdwards58 min
Jun 5, 4:40 PM CDTSevere Thunderstorm WarningEWXReal50 min

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.