Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 183, NWS Austin/San Antonio, TX

December 23, 1997Bandera County, Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Dec 23, 1997, 2:23 PM CST for Bandera County, Bexar County, Texas. It was in force for 37 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
Dec 23, 1997, 2:23 PM CST (20:23 UTC)
Expired
Dec 23, 1997, 3:00 PM CST
In force
37 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bandera County, TX, Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 83 km from the middle of the area, began a volume at 20:22 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.

What was reported inside it

TimeReportWhereRemark
Dec 23, 2:39 PM CSTHail 0.75Leon 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

Del Rio, TX (KDRT), launched 12:00Z, 8.4 hours before the alert went out and 191 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 1997-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 1997-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.1939587897117136Sfc1 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
13 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
389 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 232025
SVRSAT
TXC019-029-232100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED FOR MOVEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
223 PM CST TUE DEC 23 1997

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL TEXAS

   ...EASTERN BANDERA COUNTY...NORTHWESTERN BEXAR COUNTY

AT 2:20 PM RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHEASTERN
MEDINA COUNTY MOVING RAPIDLY NORTHEAST NEAR 50 MPH. THIS STORM WILL
MOVE INTO EASTERN BANDERA AND NORTHWESTERN BEXAR COUNTY WITHIN THE
NEXT FEW MINUTES.

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.

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

Local storm report, Dec 23, 1:54 PM CST, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
151 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
1J2/23/97   BANDERA
Local storm report, Dec 23, 2:05 PM CST, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
205 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
12/23/97   BANDERA

0150 PM    COMFORT                   TX   .50 INCH HAIL
           KENDALL
0155 PM    CENTER POINT              TX   .75 INCH HAIL
           KERR                           HAIL COVERING THE GROUND
Local storm report, Dec 23, 2:05 PM CST, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
205 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
12/23/97   BANDERA

0150 PM    COMFORT                   TX   .50 INCH HAIL
           KENDALL
0155 PM    CENTER POINT              TX   .75 INCH HAIL
           KERR                           HAIL COVERING THE GROUND
Local storm report, Dec 23, 2:08 PM CST, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
205 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
1n2/23/97   BANDERA

0150 PM    COMFORT                   TX   .50 INCH HAIL
12/23/97   KENDALL

0155 PM    CENTER POINT              TX   .75 INCH HAIL
12/23/97   KERR                           HAIL COVERING THE GROUND
Local storm report, Dec 23, 2:13 PM CST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
213 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
12/23/97   BANDERA

0150 PM    COMFORT                   TX   .50 INCH HAIL
12/23/97   KENDALL

0155 PM    CENTER POINT              TX   .75 INCH HAIL
12/23/97   KERR                           HAIL COVERING THE GROUND

0210 PM    HONDO                     TX   .50 INCH HAIL
12/23/97   MEDINA                         PEA TO MARBLE SIZE
Local storm report, Dec 23, 2:15 PM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
213 PM CST TUE DEC 23 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0138 PM    BANDERA                   TX   1 INCH HAIL
12/23/97   BANDERA                        BANDERA 3NW

0142 PM    BATESVILLE                TX   .5 INCH HAIL
12/23/97   ZAVALA

0140 PM    TARPLEY                   TX   .75 INCH HAIL
12/23/97   BANDERA

0150 PM    COMFORT                   TX   .50 INCH HAIL
12/23/97   KENDALL

0155 PM    CENTER POINT              TX   .75 INCH HAIL
12/23/97   KERR                           HAIL COVERING THE GROUND

0210 PM    HONDO                     TX   .50 INCH HAIL
12/23/97   MEDINA                         PEA TO MARBLE SIZE

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 23, 1:36 PM CSTSevere Thunderstorm WarningEWXMedina, Zavala69 min
Dec 23, 1:44 PM CSTSevere Thunderstorm WarningEWXKendall, Kerr61 min
Dec 23, 2:51 PM CSTSevere Thunderstorm WarningEWXDeWitt39 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; radar from the NEXRAD Level II archive.