Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 34, NWS Austin/San Antonio, TX

April 15, 1994Blanco County, Gillespie County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 15, 1994, 1:28 PM CDT for Blanco County, Gillespie County, Texas. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 1:28 PM CDT (18:28 UTC)
Expired
Apr 15, 1994, 2:09 PM CDT
In force
41 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Blanco County, TX, Gillespie County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 6.5 hours before the alert went out and 221 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, Stephenville/Cla, TX at 12:00Z on 1994-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1310 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, Stephenville/Cla, TX at 12:00Z on 1994-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
1310 J/kg
Mixed-layer CIN
-345 J/kg
Mixed-layer LCL
1715 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 151828
SVRAUS
TXC031-171-151930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
128 PM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...BLANCO COUNTY...EASTERN GILLESPIE COUNTY
 
AT 122 PM...RADAR DETECTED AN INTENSIFYING THUNDERSTORM 10 MILES
SOUTHEAST OF FREDERICKSBURG. LARGE HAIL AND STRONG GUSTY WINDS
ARE LIKELY AS THIS STORM MOVES THROUGH BLANCO COUNTY BETWEEN 130
AND 230 PM.  THE STORM IS MOVING TOWARDS THE EAST AT 20 MPH.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...GET INSIDE. DON'T USE TELE-
PHONES OR ELECTRICAL APPLIANCES UNLESS ABSOLUTELY NECESSARY
UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD BE CAUTIOUS OF
FLOODED ROADWAYS 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

Special weather statement, Apr 15, 12:03 PM CDT, 1 hour 25 minutes before
TXZ185>187-189-203>207-151800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1157 AM CDT FRI APR 15 1994

...THUNDERSTORMS MOVING ACROSS SOUTH CENTRAL TEXAS...

AT 1150 AM NATIONAL WEATHER SERVICE RADAR INDICATED SHOWERS AND
THUNDERSTORMS STRETCHING THE TEXAS HILL COUNTRY FROM REAL COUNTY
EASTWARD TO AUSTIN.  THE STORMS WERE MOVING TO THE NORTHEAST AT 20 MILES
AN HOUR.  THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN...GUSTY WINDS AND
HAIL AS THEY MOVE ACROSS THE HILL COUNTRY AND INTO SOUTH CENTRAL
TEXAS OVER THE NEXT FEW HOURS.

THE RAIN ACTIVITY IS OCCURRING ALONG AND AHEAD OF A COLD FRONT THAT
WILL MOVE ACROSS SOUTH TEXAS THIS AFTERNOON.  COOLER DRIER AIR WILL
FOLLOW BEHIND THE COLD FRONT AS WINDS SHIFT NORTH WITH SPEEDS OF 15 TO
25 MPH.  CLOUDS SHOULD BEGIN TO DECREASE LATER THIS EVENING WITH FAIR
SKIES FORECAST FOR SATURDAY.
STAY TUNED TO NOAA WEATHER RADIO...YOUR LOCAL TV OR RADIO STATION
FOR THE LATEST WvEATHER INFORMATION.
Special weather statement, Apr 15, 1:19 PM CDT, 9 minutes before
TXZ172-188-190-173-192-191-193-208-151915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
118 PM CDT FRI APR 15 1994

JUST AFTER 1 PM...RADAR SHOWED THUNDERSTORMS TO BE INTENSIFYING OVER
PARTS OF LEE AND BASTROP COUNTIES...WHILE STRONG THUNDERSTORMS WITH
HEAVY RAINS DOTTED THE HILL COUNTRY NORTH AND SOUTH OF FREDERICKSBURG.

THE STORMS WERE MOVING TOWARDS THE NORTHEAST AT NEAR 20 MPH.

REMEMBER...A LARGE PART OF SOUTH CENTRAL TEXAS HAS BEEN PLACED UNDER A
SEVERE THUNDERSTORM WATCH UNTIL 7 PM THIS EVENING.

STAY TUNED TO THIS STATION AND LISTEN FOR LATER REPORTS OR POSSIBLE
WARNINGS.
JVD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 1:58 PM CDTSevere Thunderstorm WarningEWXFayette, Lee47 min
Apr 15, 3:07 PM CDTSevere Thunderstorm WarningEWXBandera, Real68 min
Apr 15, 3:19 PM CDTSevere Thunderstorm WarningEWXUvalde56 min
Apr 15, 3:25 PM CDTSevere Thunderstorm WarningEWXVal Verde65 min
Apr 15, 3:58 PM CDTSevere Thunderstorm WarningEWXKinney62 min
Apr 15, 4:31 PM CDTSevere Thunderstorm WarningEWXVal Verde44 min
Apr 15, 4:39 PM CDTSevere Thunderstorm WarningEWXBexar, Medina66 min
Apr 15, 4:39 PM CDTSevere Thunderstorm WarningEWXComal66 min
Apr 15, 5:44 PM CDTSevere Thunderstorm WarningEWXBexar61 min
Apr 15, 5:46 PM CDTSevere Thunderstorm WarningEWXGuadalupe59 min
Apr 15, 6:07 PM CDTSevere Thunderstorm WarningEWXZavala68 min
Apr 15, 6:18 PM CDTSevere Thunderstorm WarningEWXCaldwell42 min
Apr 15, 6:30 PM CDTSevere Thunderstorm WarningEWXAtascosa, Guadalupe, Wilson60 min
Apr 15, 6:56 PM CDTTornado WarningEWXBastrop, Caldwell49 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every 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.