Alert archive / Texas / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 113, NWS Austin/San Antonio, TX

May 15, 1989Gillespie County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 15, 1989, 6:43 PM CDT for Gillespie County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
May 15, 1989, 6:43 PM CDT (23:43 UTC)
Expired
May 15, 1989, 7:45 PM CDT
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Gillespie County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.7 hours before the alert went out and 211 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 12:00Z on 1989-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2268 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, Del Rio, TX at 12:00Z on 1989-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
2268 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
2.6
Supercell composite
9.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 152347
SVRAUS
TXC171-160045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
643 PM CDT MON MAY 15 1989
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL TEXAS
          ...WESTERN GILLESPIE
 
AT 635 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN WESTERN
GILLESPIE COUNTY.
 
MOVEMENT NORTH AT 15 MILES AN HOUR.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSIINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 7:45 PM CDTSevere Thunderstorm WarningEWXMaverick60 min
May 14, 8:54 PM CDTSevere Thunderstorm WarningEWXDimmit66 min
May 14, 10:10 PM CDTSevere Thunderstorm WarningEWXDimmit50 min
May 14, 10:55 PM CDTSevere Thunderstorm WarningEWXLa Salle65 min
May 15, 12:33 AM CDTSevere Thunderstorm WarningEWXGillespie, Llano57 min
May 15, 1:32 AM CDTSevere Thunderstorm WarningEWXKendall58 min
May 15, 2:02 AM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Hays, Travis58 min
May 15, 3:46 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Hays, Travis59 min
May 15, 4:20 AM CDTFlash Flood WarningEWXBastrop, Caldwell, Travis115 min
May 15, 4:55 AM CDTFlash Flood WarningEWXFayette, Lee2 hr
May 15, 7:37 AM CDTTornado WarningEWXJackson38 min
May 15, 8:14 AM CDTTornado WarningEWXVictoria46 min

Nearby

Severe Thunderstorm Warnings in Texas, 1989Every severe thunderstorm warning in 1989

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.