Alert archive / Texas / Severe Thunderstorm Warnings in 1991

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

April 13, 1991Fayette County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 13, 1991, 7:55 PM CDT for Fayette County, Texas. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Apr 13, 1991, 7:55 PM CDT (00:55 UTC)
Expired
Apr 13, 1991, 9:00 PM CDT
In force
65 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Fayette County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.9 hours before the alert went out and 242 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 1991-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3709 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 1991-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
3709 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
968 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 140058
SVRAUS
TXC149-140200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
755 PM CDT SAT APR 13 1991
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHEASTERN FAYETTE COUNTY
 
AT 750 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES
SOUTHWEST OF GIDDINGS MOVING TO THE EAST AND SOUTHEAST AT 25 MILES AN
HOUR. PERSONS IN WARDA AND LETBETTER ARE IN THE PATH OF THIS STORM AND
SHOULD IMMEDIATELY TAKE COVER. LARGE HAIL HAS BEEN REPORTED WITH THIS
STORM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED tAREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 13, 2:14 PM CDT, 5 hours 41 minutes before
TXZ034>037-132030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
210 PM CDT SAT APR 13 1991

...THUNDERSTORM DEVELOPING WEST OF LAKE TRAVIS...

AT 2 PM CDT AUSTIN RADAR INDICATED A THUNDEcRSTORM DEVELOPING RAPIDLY
JUST TO THE WEST OF LAKE TRAVIS.

THIS THUNDERSTORM MAY BECOME SEVERE WITHIN THE HOUR.

IF YOU ON LAKE TRAVIS PLEASE MOVE TO SHORE RIGHT AWAY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 7:17 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee58 min
Apr 13, 8:51 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette69 min
Apr 13, 9:56 PM CDTSevere Thunderstorm WarningEWXFayette64 min
Apr 14, 2:29 AM CDTSevere Thunderstorm WarningEWXKerr61 min
Apr 14, 2:56 AM CDTSevere Thunderstorm WarningEWXBandera, Frio, Medina, Uvalde, Zavala64 min
Apr 14, 3:17 AM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie58 min
Apr 14, 3:29 AM CDTSevere Thunderstorm WarningEWXBexar, Comal, Kendall61 min
Apr 14, 3:58 AM CDTSevere Thunderstorm WarningEWXHays62 min
Apr 14, 4:41 AM CDTSevere Thunderstorm WarningEWXTravis64 min
Apr 14, 4:58 AM CDTSevere Thunderstorm WarningEWXHays47 min
Apr 14, 5:13 AM CDTSevere Thunderstorm WarningEWXMilam62 min
Apr 14, 5:38 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell52 min
Apr 14, 6:15 AM CDTSevere Thunderstorm WarningEWXFayette45 min
Apr 14, 6:27 AM CDTSevere Thunderstorm WarningEWXLavaca63 min
Apr 14, 1:33 PM CDTSevere Thunderstorm WarningEWXVictoria57 min

Nearby

Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991

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.