Alert archive / Texas / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 39, NWS Austin/San Antonio, TX

March 30, 1993Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 30, 1993, 12:54 AM CST for Real County, Texas. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Mar 30, 1993, 12:54 AM CST (06:54 UTC)
Expired
Mar 30, 1993, 2:00 AM CST
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Real County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 6.9 hours before the alert went out and 111 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 1993-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1266 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 1993-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 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
1266 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1875 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
413 m²/s²
Significant tornado parameter
0.3
Supercell composite
12.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 300654
SVRSAT
TXC385-300800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1254 AM CST TUE MAR 30 1993
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
 
   ...REAL COUNTY
 
A SEVERE THUNDERSTORM WAS NOTED IN SOUTHERN REAL COUNTY NEAR LEAKEY
MOVING EAST AT 30 MPH.
 
ALTH4OUGH NO TORNADOES HAVE BEEN DETECTED WITH THIS STORM...A
TORNADO WATCH REMAINS IN EFFECT.  SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING
SO BE ON THE LOOKOUT.

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, Mar 29, 11:07 PM CST, 1 hour 47 minutes before
TXZ054-300600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1108 PM CST MON MAR 29 1993

...A TORNADO WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL 3 AM CST...

THE SEVERE THUNDERSTORM WARNING FOR VAL VERDE COUNTY HAS EXPIRED.
A NEW AREA OF THUNDERSTORMS IS DEVELOPING RAPIDLY IN NORTHWESTERN VAL
VERDE COUNTY AND OVER MEXICO JUST WEST OF DEL RIO. THE STRONGEST STORMS
WERE 10 MILES NORTHWEST OF LANGTRY NEAR THE PECOS RIVER AND 25 MILES
WEST OF DEL RIO. MOVEMENT IS TO THE SOUTHEAST AT 30 MPH.

REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES
AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS
AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Mar 29, 11:13 PM CST, 1 hour 41 minutes before
TXZ034-035-038>041-054-300630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1111 PM CST MON MAR 29 1993

...TORNADO WATCH ALONG AND NORTHWEST OF EAGLE PASS TO COTULLA TO SAN ANTONIO
(INCLUDING THE SAN ANTONIO METROPOLITAN AREA) TO BLANCO AND BURNET TIL 3 AM...

AT 1105 PM THIS EVENING...A NEARLY SOLID LINE OF THUNDERSTORMS STRETCHED FROM
NEAR MASON TO JUNCTION TO ROCKSPRINGS TO JUST NORTHWEST OF DEL RIO.  THE LINE
WAS MOVING TOWARD THE SOUTHEAST AT 40 MILES AN HOUR.

THERE HAVE BEEN NO REPORTS OR INDICATIONS OF SEVERE WEATHER IN THIS LINE YET.
HOWEVER...IT IS NOW MOVING INTO A WARMER...MORE MOIST AND MUCH MORE UNSTABLE
AIR...AND PORTIONS OF THE LINE COULD BECOME SEVERE VERY QUICKLY.  LARGE HAIL
WILL BE A THREAT ONCE AGAIN AS THIS LINE ENTERS SOUTH CENTRAL TEXAS.  THERE IS
ALSO A THREAT OF DAMAGING WIND...SINCE THE MOVEMENT OF THE STORMS IS 40 MILES
PER HOUR.  AND...BY THE VERY NATURE OF THESE STORMS...HEAVY RAIN AND VERY
FREQUENT AND DANGEROUS LIGHTNING ARE INEVITABLE.  EVERYONE IN AND NEAR THE
WATCH AREA SHOULD REMAIN AWARE OF THIS POTENTIAL FOR SEVERE WEATHER.
Special weather statement, Mar 29, 11:46 PM CST, 1 hour 8 minutes before
TXZ030-034>036-300645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1145 PM CST MON MAR 29 1993

...A TORNADO WATCH REMAINS IN EFFECT FOR THE TEXAS HILL COUNTRY
   UNTIL 3 AM...

AT 1140 PM...A LINE OF STRONG THUNDERSTORMS WAS MOVING INTO THE
HILL COUNTRY AND CURRENTLY EXTENDED FROM DEL RIO TO MASON TO SAN SABA.

A VERY INTENSE THUNDERSTORM WAS APPROACHING THE NORTHERN PARTS OF
GILLESPIE COUNTY.  THE COMMUNITIES OF DOSS AND CHERRY SPRINGS ARE
NEAR THE IMMEDIATE PATH OF THIS STORM AND SHOULD PREPARE TO TAKE
COVER.

HAIL...STRONG WINDS AND DANGEROUS LIGHTNING ARE LIKELY WITH THE STRONGER
STORMS.  STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER
BULLETINS AND POSSIBLnE WARNINGS.
HOHMANN
Special weather statement, Mar 29, 11:50 PM CST, 1 hour 4 minutes before
TXZ034-035-038>041-054-300700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1150 PM CST MON MAR 29 1993

...TORNADO WATCH ALONG AND NORTHWEST OF EAGLE PASS TO COTULLA TO SAN ANTONIO
(INCLUDING THE SAN ANTONIO METROPOLITAN AREA) TO BLANCO AND BURNET TIL 3 AM...

AT 1145 PM THIS EVENING...A NEARLY SOLID LINE OF THUNDERSTORMS WITH HEAVY RAIN
WAS LOCATED FROM NEAR MASON TO JUNCTION TO ROCKSPRINGS AND JUST TO THE NORTH
OF BRACKETVILLE.  THE LINE WAS MOVING TO THE SOUTHEAST AT 40 MILES AN HOUR.

THERE IS A THREAT OF LARGE HAIL AND DAMAGING WIND...AS WELL AS POSSIBLE
TORNADOES...THROUGH THE EARLY MORNING HOURS AS THIS LINE MOVES SOUTHEASTWARD
ACROSS SOUTH CENTRAL TEXAS.  AS THE LINE PASSED THROUGH JUNCTION...WINDS
GUSTED TO 37 MILES AN HOUR.  PART OF THE REASON FOR THE GUSTY WINDS IS SIMPLY
THE VERY RAPID MOVEMENT OF THE STORMS THEMSELVES.  EVERYONE IN AND NEAR THE
PATH OF THIS LINE OF STORMS CAN EXPECT BRIEF BUT VERY HEAVY RAIN AND VERY
FREQUENT AND DANGEROUS LIGHTNING.
Special weather statement, Mar 30, 12:14 AM CST, 40 minutes before
TXZ054-300700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1215 AM CST TUE MAR 30 1993

...A TORNADO WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL 300 AM CST...

AT 1210 AM CST RADAR INDICATED A LINE OF STRONG THUNDERSTORMS IN VAL
VERDE COUNTY. THE STORMS EXTENDED FROM LOMA ALTA TO LANGTRY. A SECOND
AREA OF THUNDERSTORMS EXTENDED FROM 5 MILES NORTH OF DEL RIO TO 40 MILES
SOUTHWEST OF DEL RIO. THE STRONGEST STORM WAS LOCATED 25 MILES
SOUTHWEST OF DEL RIO IN MEXICO. MOVEMENT WAS EAST AT 30 MPH.

REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES
AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS
AND LISTEN FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Mar 30, 12:33 AM CST, 21 minutes before
TXZ054-300730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1235 AM CST MON MAR 29 1993

...A TORNADO WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL 300 AM CST...

AT 1230 AM CST RADAR INDICATED A LINE OF STRONG THUNDERSTORMS IN VAL
VERDE COUNTY. THE STORMS EXTENDED FROM 20 MILES NORTHEAST OF DEL RIO TO
DEL RIO TO 30 MILES SOUTHWEST OF DEL RIO. THE STRONGEST STORM WAS
LOCATED IN THE CITY OF DEL RIO WHERE PEA SIZED HAIL WAS REPORTED.

LARGE HAIL...HEAVY RAIN...DAMAGING WINDS AND FREQUENT DANGEROUS
LIGHTNING ARE POSSIBLE WITH THESE STORMS.

REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES
AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IBN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS
AND LISTEN FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 6:05 PM CSTSevere Thunderstorm WarningEWXEdwards, Kinney55 min
Mar 29, 6:33 PM CSTSevere Thunderstorm WarningEWXVal Verde42 min
Mar 29, 6:52 PM CSTTornado WarningEWXKinney68 min
Mar 29, 7:17 PM CSTSevere Thunderstorm WarningEWXUvalde58 min
Mar 29, 8:15 PM CSTSevere Thunderstorm WarningEWXUvalde60 min
Mar 29, 8:54 PM CSTSevere Thunderstorm WarningEWXZavala66 min
Mar 29, 9:37 PM CSTTornado WarningEWXZavala41 min
Mar 29, 9:47 PM CSTSevere Thunderstorm WarningEWXFrio58 min
Mar 29, 10:00 PM CSTSevere Thunderstorm WarningEWXVal Verde60 min
Mar 30, 12:04 AM CSTSevere Thunderstorm WarningEWXReal41 min
Mar 30, 12:32 AM CSTSevere Thunderstorm WarningEWXBandera, Kerr58 min
Mar 30, 12:57 AM CSTSevere Thunderstorm WarningEWXKinney63 min
Mar 30, 1:30 AM CSTSevere Thunderstorm WarningEWXBandera60 min

Nearby

Severe Thunderstorm Warnings in Texas, 1993Every severe thunderstorm warning in 1993

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.