Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 29, NWS Austin/San Antonio, TX

April 5, 1994Zavala County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 5, 1994, 11:13 PM CDT for Zavala County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued: Apr 5, 1994, 11:13 PM CDT (04:13 UTC)
Expired: Apr 6, 1994, 12:15 AM CDT
In force: 62 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Zavala County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.2 hours before the alert went out and 119 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3597 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 060415
SVRSAT
TXC507-060515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1113 PM CDT TUE APR 5 1994
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
 
   ...ZAVALA COUNTY
 
A SEVERE THUNDERSTORM WITH POSSIBLE LARGE HAIL WAS INDICATED OVER ZAVALA
COUNTY.  IN ADITION TO HAIL...GUSTY WINDS...DANGEROUS LIGHTNING AND HEAVRAIN CAN BE EXPECTED WITH THIS STORM FOR THE NEXT HOUR.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.
 
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 OCCUR WITH ANY THUNDERSTORM.

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, Apr 5, 10:00 PM CDT, 1 hour 13 minutes before

TXZ204>206-219-223-230-060215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
955 PM CDT TUE APR 05 1994

...THE NORTHERN PART OF THE SEVERE THUNDERSTORM WATCH NUMBER 57 HAS BEEN
CANCELLED...
...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PART OF SOUTH CENTRAL
TEXAS UNTIL 11 PM CDT TONIGHT...
...SEVERE THUNDERSTORM WARNING FOR BEXAR COUNTY HAS EXPIRED...

AT 945 PM CDT SHOWERS AND A FEW THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED
OVER WILSON AND GONZALES COUNTIES...MOVING RAPIDLY EASTWARD.  OTHER SHOWERS
AND THUNDERSTORMS WERER LOCATED SOUTH AND SOUTHWEST OF SAN ANTONIO TOWARDS
COTULLA.

MOST THUNDERSTORMS WERE ON THE DECREASE THIS PAST HOUR AS COOLER DRIER AIR
FILTERED INTO SOUTH TEXAS BEHIND A COLD FRONT.  THIS TREND SHOULD CONTINUE
THIS EVENING AND THE THUNDERSTORMS WILL MOVE OFF TO THE SOUTH AND EAST.
<
ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS CHANGE.

Local storm report, Apr 5, 10:07 PM CDT, 1 hour 6 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1006 PM CDT TUE APR 05 1994

   TIME         EVENT
 453PM          PEA SIZED HAIL BETWEEN BOERNE AND COMFORT IN KENDALL
                COUNTY.
 530PM          PEA TO MARBLE SIZED HAIL IN BOERNE.
 535PM          PEA SIZED HAIL AND 60 MILES PER HOUR WIND IN BANDERA.
 535PM          BUILDING MOVED BY WINDS IN BANDERA BUT NO ONE HURT.
 535PM          GOLF BALL SIZED HAIL IN THE CANYON LAKE AREA OF COMAL
                COUNTY.
 658PM          PEA SIZED HAIL IN SEGUIN AND MCQUEENEY IN GUADALUPE
                COUNTY.
 750PM          1/4 TO 3/8 INCH HAIL AT WOODS OF SHAVANO IN NORTHERN
                BEXAR COUNTY
 815PM          PEA SIZED HAIL AT AIR FORCE VILLAGE IN WESTERN BEXAR
                COUNTY.
 835PM          1/2 INCH HAIL AT KELLY AIR FORCE BASE.
 845PM          HEAVY RAIN AND MARBLE TO NICKEL SIZED HAIL IN DOWNTOWN
                SAN ANTONIO.

Special weather statement, Apr 5, 10:15 PM CDT, 58 minutes before

TXZ192-191-193-208-194-209-174-060515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1014 PM CDT TUE APR 5 1994

...SEVERE THUNDERSTORM WATCH CANCELLED FOR TRAVIS...HAYS AND BASTROP
COUNTIES...

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR LEE...FAYETTE AND
CALDWELL COUNTIES UNTIL 11 PM CDT...

AT 10 PM STRONG THUNDERSTORMS WERE 15 MILES SOUTHEAST OF SEGUIN AND 30
MILES SOUTHEAST OF SAN ANTONIO.  THESE THUNDERSTORMS WERE MOVING EAST AT
30 MPH.

CONDITIONS REMAIN FAVORABLE FOR THUNDERSTORM DEVELOPMENT IN THE WATCH
AREA.  THE STRONGEST STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...
DAMAGING WINDS...DANGEROUS LIGHTNING AND HEAVY RAINFALL.

STAY TUNED FOR FURTHER UPDATES.

LEACH

Local storm report, Apr 5, 10:17 PM CDT, 56 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
1020 PM CDT TUE APR 05 1994

TIME/CDT  COUNTY       EVENT...OF 05 APRIL 1994...

0400 PM   TRAVIS       HAM RADIO REPORT 3/4 INCH HAIL AT WESTLAKE HIGH
                       SCHOOL/SOUTHWEST AUSTIN.

0404 PM   TRAVIS       PUBLIC REPORTS 1/2 TO 3/4 INCH HAIL IN WESTLAKE
                       HILLS/SOUTHWEST AUSTIN.  (RELAYED THROUGH KVUE 24)

0413 PM   TRAVIS       SKYWARN SPOTTER REPORTS 3/4 INCH HAIL AT 45TH AND
                       DUVAL IN CENTRAL AUSTIN.  (RELAYED THROUGH LCRA)

0445-     HAYS         SKYWARN SPOTTER REPORTS GOLFBALL-SIZED HAIL IN
 0515 PM               WIMBERLEY.  (FOR THIS 30 MINUTE PERIOD)

0551 PM   HAYS         HAM RADIO REPORTS LARGER THAN 1/2 INCH HAIL ON
                       WEST SIDE OF SAN MARCOS.
.
0553 PM   HAYS         HAM RADIO REPORT 1 1/2 INCH HAIL IN SAN MARCOS

0550-     HAYS         SGT. CARL DEAL/SAN MARCOS POLICE DEPARTMENT
 0600 PM               REPORTS EXTENSIVE HAIL DAMAGE IN AND AROUND THE
                       CITY OF SAN MARCOS. POLICE VEHICLES WITH HAIL
                       DAMAGE.. TREES PARTIALLY STRIPPED BY HAIL. TREES
                       UP TO 1 FOOT IN DIAMETER DOWNED NEAR CITY PARK
                       ALONG THE SAN MARCOS RIVER.. WINDS ESTIMATED AT
                       OR ABOVE 60 MPH. SEVERAL STREETS WERE BLOCKED BY
                       DOWNED TREES.. BRANCHES OR POWER LINES. ONE LARGE
                       STREET SIGN DOWNED BY WIND. POWER AND TELEPHONE
                       OUTAGES REPORTED.
                       SGT. DEAL WITNESSED 1 1/4 INCH HAIL AT ABOUT 555PM.
                       HAIL REMAINED ON GROUND IN SOME AREAS THROUGH
                       815-830PM. (SAN MARCOS PD IS SKYWARN TRAINED)

0555 PM   HAYS         PUBLIC REPORTS 1 1/2 TO NEAR 2 INCH HAIL /AT OR
                       SLIGHTLY LARGER THAN GOLFBALLS/ IN SPRING LAKE
                       ESTATES JUST ABOVE AQUARENA SPRINGS/NORTH SAN
                       MARCOS. VEGETATION STRIPPED.. HAIL IN DRIFTS.

0630 PM   CALDWELL     LOWER COLORADO RIVER AUTHORITY METEOROLOGY OFFICE
                        RELAYS REPORT OF SOME TIN ROOFING BLOWN OFF
                        BUILDINGS ALONG STATE HIGHWAY 142 IN THE MAXWELL
                        AREA /BETWEEN MARTINDALE AND LOCKHART/. SOME
                        POWER LINES DOWNED IN AREA AS WELL.

0655 PM   BASTROP/      SKYWARN SPOTTER REPORTS 3/4 TO 1 INCH HAIL
          FAYETTE       ALONG BASTROP/FAYETTE COUNTY LINE NEAR CISTERN.
                        (RELAYED THROUGH KVUE 24)

SL/CP/TK/MM/WT

Special weather statement, Apr 5, 10:42 PM CDT, 31 minutes before

TXZ204>206-217>219-223-228-230-060430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1040 PM CDT TUE APR 05 1994

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PART OF SOUTH CENTRAL
TEXAS UNTIL 11 PM CDT...

AT 1035 PM CDT THUNDERSTORMS HAVE FIRED OVER MAVERICK COUNTY TO THE NORTHEAST
AND SOUTH OF EAGLE PASS.  THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT
ABOUT 30 MPH.  BRIEF HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTING CAN
BE EXPECTED WITH THESE THUNDERSTORMS.  THESE THUNDERSTORMS WILL LIKELY
MOVE INTO ZAVALA AND DIMMIT COUNTIES DURING THE NEXT HOUR.

OTHER WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WERE LOCATED
OVER MCMULLEN AND EASTERN GONZALES COUNTY.   MOVEMENT WAS RAPIDLY TO THE
EAST.

ADDITIONAL STATEMENTS WILL BE ISSUED TO KEEP YOU INFORMED OF THE LATEST
WEATHER CHANGES.

Special weather statement, Apr 5, 11:02 PM CDT, 11 minutes before

TXZ192-191-193-208-194-209-174-060600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1101 PM CDT TUE APR 5 1994

...SEVERE THUNDERSTORM WATCH FOR LEE...FAYETTE AND CALDWELL COUNTIES HAS
EXPIRED...

AT 1055 PM ALL THUNDERSTORM ACTIVITY ACROSS SOUTH CENTRAL TEXAS HAD
DISSIPATED.  ONLY LIGHT RAIN WAS NOTED IN SOUTHERN FAYETTE COUNTY AND
NEAR SAN ANTONIO.

COOLER AND DRYER SURFACE AIR HAS MOVED INTO THE REGION...PREVENTING
THUNDERSTORM ACTIVITY.  THIS WILL BE THE LAST STATEMENT ON THIS EVENT.

LEACH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 7:21 PM CDT	Severe Thunderstorm Warning	EWX	Fayette	24 min
Apr 5, 7:47 PM CDT	Severe Thunderstorm Warning	EWX	Gonzales	28 min
Apr 5, 8:03 PM CDT	Severe Thunderstorm Warning	EWX	Lavaca	42 min
Apr 5, 8:42 PM CDT	Severe Thunderstorm Warning	EWX	Bexar	63 min
Apr 5, 11:49 PM CDT	Severe Thunderstorm Warning	EWX	Uvalde	56 min
Apr 5, 11:58 PM CDT	Severe Thunderstorm Warning	EWX	Frio	62 min
Apr 6, 2:25 AM CDT	Severe Thunderstorm Warning	EWX	Webb	65 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994 Every severe thunderstorm warning in 1994

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.