Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 9, NWS Austin/San Antonio, TX

March 8, 1994Webb County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 8, 1994, 10:11 PM CST for Webb County, Texas. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Mar 8, 1994, 10:11 PM CST (04:11 UTC)
Expired
Mar 8, 1994, 11:15 PM CST
In force
64 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Webb County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.2 hours before the alert went out and 196 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, Corpus Christi, TX at 00:00Z on 1994-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 986 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, Corpus Christi, TX at 00:00Z on 1994-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
986 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 090413
SVRSAT
TXC479-090515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1011 PM CST TUE MAR 8 1994
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
 
   ...WEBB COUNTY
 
AT 1005 PM CST A POSSIBLE SEVERE THUNDERSTORM WAS MOVING FROM MEXICO
INTO WEBB COUNTY NEAR LAREDO. THIS THUNDERSTORMS WAS MOVING TO THE
NORTHEAST AT ABOUT 25 MPH. HAIL...DAMAGING WINDS AND BLINDING RAIN IS
LIKELY WITH THIS THIS THUNDERSTORM.
 
 
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
HREAVY 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, Mar 8, 6:58 PM CST, 3 hours 13 minutes before
TXZ183-090200-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE DEL RIO TX
700 PM CST TUE MAR 8 1994

AT 655 PM CST...RADAR INDICATED AN LINE OF SHOWERS AND THUNDERSTORMS
FROM ROCKSPRINGS TO 5 MILES SOUTHEAST OF DEL RIO. THE STRONGEST
STORMS WERE LOCATED 10 MILES SOUTHEST OF ROCKSPRINGS. MOVEMENT WAS TO
THE EAST AT 20 MILES AN HOUR.

ALTHOUGH SOME SHOWERS HAVE MOVED THROUGH DEL RIO...SHOWERS AND
THUNDERSTORMS REMAIN IN THE FORCAST FOR THE REST OF THE EVENING.

MOTORISTS IN AND AROUND DEL RIO AND VAL VERDE COUNTY SHOULD EXERSISE
CAUTION...AS WET AND SLIPPERY ROADS ALONG WTIH REDUCED VISIBILITY IN
THIS RAINFALL ACTIVITY COULD PRESENT A DRIVING HAZARD.
Special weather statement, Mar 8, 7:04 PM CST, 3 hours 7 minutes before
TXZ184-185-186-202-203-090230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
705 PM CST TUE MAR 8 1994

...LINE OF THUNDERSTORMS ALONG COLDFRONT MOVING THROUGH HILL COUNTRY...

AT 7 PM CST A LINE OF THUNDERSTORMS WAS LOCATED SOUTH OF DEL RIO TO
BRACKETVILLE TO NEAR LEAKEY TO WEST OF MOUNTAIN HOME IN KERR COUNTY.
THIS LINE OF THUNDERSTORMS FORMED ON A COLDFRONT THAT WAS MOVING SLOWLY TO
THE SOUTHEAST.  BRIEF HEAVY RAIN...STRONG GUSTY WINDS...DANGEROUS LIGHTING
AND SMALL HAIL IS POSSIBLE WITH THESE STORMS.

PERSONS TRAVELING IN THE HILL COUNTRY SHOULD USE EXTRA CAUTION DUE TO
DRENCHED AND SLICK ROADS.  THE ABRUPT SHIFT TO STRONG NORTH OF 20 TO 35
MPH COULD ALSO CAUSE PROBLEMS FOR PERSONS DRIVING HIGH PROFILE VEHICLES.

THE THUNDERSTORMS IN REAL COUNTY HAVE INTENSIFIED DURING THE PAST HOUR AND
WILL BE MONITERED FOR ADDITIONAL DEVELOPEMENT.  THE ATMOSPHERE REMAINS RIPE
FOR SEVERE WEATHER THIS EVENING.  ADDITIONAL STATEMENTS WILL BE ISSUED
THROUGHOUT THE EVENING AS NECESSARY.
Special weather statement, Mar 8, 7:25 PM CST, 2 hours 46 minutes before
TXZ171>174-188-190-191-192-090230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
722 PM CST TUE MAR 8 1994

...FLASH FLOOD WATCH IN EFFECT TONIGHT FOR LAMPASAS...LLANO...BURNET...
WILLIAMSON AND MILAM COUNTIES...

AT 720 PM...SHOWERS AND A FEW THUNDERSTORMS STRETCHED ALONG A COLD FRONT
FROM JOHNSON CITY TO LAKE TRAVIS...GEORGETOWN...BARTLETT AND CAMERON.
THE ACTIVITY WAS MOVING TO THE EAST AND SOUTHEAST AT 25 MILES AN HOUR.

THESE SHOWERS AND THUNDERSTORMS WILL AFFECT AUSTIN AND VICINITY BETWEEN
8 AND 9 PM.

ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WAS DEVELOPING AND APPROACHING
THE HILL COUNTRY FROM THE AREA EXTENDING FROM BRADY TO JUNCTION AND LEAK
THOSE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR.

PERSONS THROUGHOUT THE HILL COUNTRY AND SOUTH CENTRAL TEXAS SHOULD STAY
TUNED TO THE LATEST WEATHER BROADCAST ON NOAA WEATHER RADIO AND BE
PREPARED TO TAKE SHELTER SHOULD THREATENING WEATHER BE OBSERVED OPR A
WARNING ISSUED.

PLAN AHEAD OF TIME FOR FLOODING AND SEVERE WEATHER...IT COULD SAVE YOUR
LIFE.
HOHMANN
Special weather statement, Mar 8, 8:13 PM CST, 1 hour 58 minutes before
TXZ183-090400-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE DEL RIO TX
815 PM CST TUE MAR 8 1994

AT 810 PM CST...RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS FROM
ROCKSPRINGS TO DEL RIO TO 50 MILES SOUTHWEST OF DEL RIO. THE STRONGEST
STORMS WERE LOCATED OVER DEL RIO. MOVEMENT WAS TO THE EAST AT 20 MILES
AN HOUR.

SMALL HAIL...DAMAGING LIGHTNING...AND DANGEROUS WINDS ARE LIKELY WITH
THESE STORMS...SO...KEEP A WATCHFUL EYE ON THE WEATHER AND PREPAREDNESS
REQUIREMENTS SHOULD BE CHECKED.

MOTORISTS IN AND AROUND DEL RIO AND VAL VERDE COUNTY SHOULD EXERCISE
CAUTION...AS WET AND SLIPPERY ROADS ALONG WTIH REDUCED VISIBILITY IN
THIS RAINFALL ACTIVITY COULD PRESENT A DRIVING HAZARD.

STAY TUNE TO LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.
Special weather statement, Mar 8, 8:30 PM CST, 1 hour 41 minutes before
TXZ183>187-202-203-228-229-239-090330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
830 PM CST TUE MAR 8 1994

...THUNDERSTORMS DEVELOPED RAPIDLY OVER NORTHERN WEBB AND DIMMIT COUNTIES...

AT 815 PM CST THUNDERSTORMS FORMED RAPIDLY OVER NORTHERN WEBB AND EASTERN
DIMMIT COUNTIES.  THESE THUNDERSTORMS FORMED IN WARM AIR JUST AHEAD OF THE
COLD FRONT.  THE RAPID DEVELOPEMENT INDICATES THAT THE AIRMASS IS VERY
UNSTABLE AND THE THUNDERSTORMS COULD TURN SEVERE.

THERE THUNDERSTORMS WILL LIKELY INTENSIFY DURNING THE NEXT FEW HOURS AND
MOVE OFF THE EAST AND NORTHEAST.  PERSONS IN WEBB...DIMMIT AND MCMULLEN
COUNTIES CAN EXPECT HEAVY RAIN...GUSTY WINDS...HAIL AND DANGEROUS LIGHTING
WITH THESE STORMS.  STAYED TUNED FOR ADDITIONAL STATEMENTS AND POSSIBLE
WARNINGS.

ELSEWHERE A LINE OF SHOWERS AND THUNDERSTORMS WAS LOCATED FROM DEL RIO
TO ROCKSPRINGS TO NEAR JUNCTION AND KERRVILLE.
Special weather statement, Mar 8, 9:58 PM CST, 13 minutes before
TXZ171>174-188-190-191-192-090430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1000 PM CST TUE MAR 8 1994

...FLASH FLOOD WATCH HAS BEEN CANCELLED FOR LAMPASAS...LLANO...BURNET...
WILLIAMSON AND MILAM COUNTIES...

AT 955 PM...SHOWERS AND A FEW THUNDERSTORMS SCATTERED THORUGHOUT
CENTRAL TEXAS.  THE MOST CONCENTRATED AREA OF PRECIPITATION WAS FOUND
FROM FREDERICKSBURG TO BURNET...LANO AND LAMPASAS.  ANOTHER AREA WAS
NOTED FROM LULING TO BASTROP...CAMERON AND CALDWELL.

THE RAINS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

EVENTHOUGH RAINS ARE EXPECTED TO CONTINUE THE REST OF THE NIGHT
NO FLOODING RAINS ARE GOING TO OCCUR.
LUNA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 8:58 PM CSTSevere Thunderstorm WarningEWXWebb62 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.