Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 5, NWS Austin/San Antonio, TX

March 6, 1994Blanco County, Hays County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 6, 1994, 3:50 PM CST for Blanco County, Hays County, Texas. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Mar 6, 1994, 3:50 PM CST (21:50 UTC)
Expired
Mar 6, 1994, 4:45 PM CST
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Blanco County, TX, Hays County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 9.8 hours before the alert went out and 229 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 1994-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 402 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1994-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.19395878Sfc1 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
402 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
1752 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KAUS 062151
SVREWX
TXC031-209-062245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
350 PM CST SUN MAR 6 1994
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...EASTERN BLANCO COUNTY...WESTERN HAYS COUNTY
 
AT 350 PM...LOCAL AND DOPPLER RADAR INDICATED LARGE HAIL NEAR JOHNSON
CITY...MOVING TO THE SOUTHEAST AT 20 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND AROUND 60 MPH OR
HIGHER...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
SLOW DOWN OR MOVE COMPLETELY OFF ROADWAYS IN HEAVY RAINS.
BRIEF LOCALIZED FLOODING ACCOMPANY MANY SEVERE THUNDERSTORMS.
REMEMBER WE ISSUE WARNINGS ON A COUNTY BASIS.

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 6, 2:45 PM CST, 1 hour 5 minutes before
TXZ142-155-156-171>174-188-190>195-208-209-062200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
245 PM CST SUN MAR 06 1994

...A DEVELOPING THUNDERSTORM IN EXTREME EASTERN GILLESPIE COUNTY...

AT 245 PM.. AUSTIN NATIONAL WEATHER SERVICE RADAR INDICATED A
DEVELOPING THUNDERSTORM ABOUT 15 MILES NORTHEAST OF FREDERICKSBURG
IN EASTERN GILLESPIE COUNTY. THIS ISOLATED THUNDERSTORM IS MOVING SLOWLY
TOWARD THE EAST. THIS STORM... IF IT CONTINUES ITS CURRENT MOVEMENT...
WILL AFFECT THE ROUND MOUNTAIN/JOHNSON CITY AREA WITHIN THE NEXT HOUR.

THE ATMOSPHERE OVER SOUTH CENTRAL TEXAS IS GROWING MORE UNSTABLE AND THE
POTENTIAL EXISTS FOR FURTHER THUNDERSTORM DEVELOPMENT OVER THE NEXT FEW
HOURS. THERE IS A POSSIBILITY OF ISOLATED SEVERE THUNDERSTORMS IN THE
NORTHERNMOST COUNTIES OF SOUTH CENTRAL TEXAS AS THE AFTERNOON AND
EVENING HOURS CONTINUE.

STAY TUNED FOR MORE INFORMATION REGARDING THUNDERSTORM DEVELOPMENT.
TK/JVD/PH
Special weather statement, Mar 6, 2:47 PM CST, 1 hour 3 minutes before
TXZ142-155-156-171>174-188-190>195-208-209-062200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
245 PM CST SUN MAR 06 1994

...A DEVELOPING THUNDERSTORM IN EXTREME EASTERN GILLESPIE COUNTY...

AT 245 PM.. AUSTIN NATIONAL WEATHER SERVICE RADAR INDICATED A
DEVELOPING THUNDERSTORM ABOUT 15 MILES NORTHEAST OF FREDERICKSBURG
IN EASTERN GILLESPIE COUNTY. THIS ISOLATED THUNDERSTORM IS MOVING SLOWLY
TOWARD THE EAST. THIS STORM... IF IT CONTINUES ITS CURRENT MOVEMENT...
WILL AFFECT THE ROUND MOUNTAIN/JOHNSON CITY AREA WITHIN THE NEXT HOUR.

THE ATMOSPHERE OVER SOUTH CENTRAL TEXAS IS GROWING MORE UNSTABLE AND THE
POTENTIAL EXISTS FOR FURTHER THUNDERSTORM DEVELOPMENT OVER THE NEXT FEW
HOURS. THERE IS A POSSIBILITY OF ISOLATED SEVERE THUNDERSTORMS IN THE
NORTHERNMOST COUNTIES OF SOUTH CENTRAL TEXAS AS THE AFTERNOON AND
EVENING HOURS CONTINUE.

STAY TUNED FOR MORE INFORMATION REGARDING THUNDERSTORM DEVELOPMENT.
TK/JVD/PH
Special weather statement, Mar 6, 3:28 PM CST, 22 minutes before
TXZ171>174-188-190>195-208-209-062230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
330 PM CST SUN MAR 06 1994

...A LARGE INTENSIFYING THUNDERSTORM WAS OVER BLANCO COUNTY...

AT 325 PM...RADAR INDICATED A 20 MILE DIAMETER THUNDERSTORM BETWEEN
JOHNSON CITY AND STONEWALL TO BE MOVING TO THE SOUTHEAST AT 20 MPH.
IF THIS MOVEMENT CONTINUES...THE STORM COULD BE IN VICINITY OF LAKE
TRAVIS AND DRIPPING SPRINGS BETWEEN 4 AND 5 PM.

THE HIGHEST RAINFALL RATE WAS NEAR ONE INCH PER HOUR IN A 5 MILE DIAMETER
SPOT LOCATED 5 MILES WEST OF JOHNSON CITY.  THIS STORM COULD FURTHER IN-
TENSIFY AND PRODUCE HAIL OR HIGH WINDS.

PERSONS IN WESTERN TRAVIS AND NORTHERN HAYS COUNTIES SHOULD BE ON THE ALERT.

JVD
Special weather statement, Mar 6, 3:30 PM CST, 20 minutes before
TXZ171>174-188-190>195-208-209-062230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
330 PM CST SUN MAR 06 1994

...A LARGE INTENSIFYING THUNDERSTORM WAS OVER BLANCO COUNTY...

AT 325 PM...RADAR INDICATED A 20 MILE DIAMETER THUNDERSTORM BETWEEN
JOHNSON CITY AND STONEWALL TO BE MOVING TO THE SOUTHEAST AT 20 MPH.
IF THIS MOVEMENT CONTINUES...THE STORM COULD BE IN VICINITY OF LAKE
TRAVIS AND DRIPPING SPRINGS BETWEEN 4 AND 5 PM.

THE HIGHEST RAINFALL RATE WAS NEAR ONE INCH PER HOUR IN A 5 MILE DIAMETER
SPOT LOCATED 5 MILES WEST OF JOHNSON CITY.  THIS STORM COULD FURTHER IN-
TENSIFY AND PRODUCE HAIL OR HIGH WINDS.

PERSONS IN WESTERN TRAVIS AND NORTHERN HAYS COUNTIES SHOULD BE ON THE ALERT.

JVD
Special weather statement, Mar 6, 3:50 PM CST, 0 minutes before
TXZ189-205>207-221-223-062300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
350 PM CST SUN MAR 6 1994

...THUNDERSTORMS DEVELOPING ACROSS PARTS OF SOUTH CENTRAL TEXAS...

AT 350 PM NATIONAL WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS
ACROSS THE TEXAS HILL COUNTRY BETWEEN JOHNSON CITY AND STONWALL.  THESE
STORMS WERE MOVING TO THE SOUTHEAST AT ABOUT 20 MILES PER HOUR.  IF THIS
MOVEMENT CONTINUES THESE STORMS COULD MOVE INTO THE AUSTIN AREA WITHIN
AN HOUR OR SO AND THE AREA BETWEEN SAN ANTONIO AND SAN MARCOS.
ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS THEY ARE
PRODUCING BRIEF HEAVY RAIN AND GUSTY WINDS.

PERSONS IN THE AREA BETWEEN SAN ANTONIO AND AUSTIN INCLUDING THE
CITIES OF NEW BRAUNFELS AND SEGUIN SHOULD BE ALERT FOR GUSTY WINDS AND
BRIEF HEAVY RAIN.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 5:30 PM CSTSevere Thunderstorm WarningEWXComal, Kendall60 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.