Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Austin/San Antonio, TX

May 2, 1990Kerr County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 2, 1990, 10:30 PM CDT for Kerr County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
May 2, 1990, 10:30 PM CDT (03:30 UTC)
Expired
May 2, 1990, 11:30 PM CDT
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kerr 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 00:00Z, 3.5 hours before the alert went out and 163 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 00:00Z on 1990-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1990-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 030332
SVRSAT
TXC265-030430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1030 PM CDT WED MAY 2 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...WESTERN KERR
 
AT 1030 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED MOVING ALONG
HIGHWAY 41 INTO WESTERN KERR COUNTY...TOWARD THE CITY OF MOUNTAIN
HOME.  MOVEMENT WAS TO THE NORTHEAST AT 25 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
 
A TORNADO WAT	CH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO WARNING.

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, May 2, 5:44 PM CDT, 4 hours 46 minutes before
TXZ030-034>037-030030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
540 PM CDT WED MAY 2 1990

...A FLASH FLOOD WATCH FOR TRAVIS AND ALL SURROUNDING COUNTIES TONIGHT
   EXCLUDING FAYETTE AND BURLESON COUNTIES ...

AROUND 530 PM RADAR SHOWED SCATTERED SHOWERS THROUGHTOUT CENTRAL
TEXAS. THE AREA OF COVERAGE IS INCREASING BUT RAINFALL REAMIN LIGHT.
MOVEMENT OF THE SHOWERS IS TO THE NORTH AT 25 MPH.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP LATER THIS EVENING
AND TONIGHT PRODUCING HEAAVY RAIN AND FLASH FLOODING.

PERSONS IN THE WATCH AREA ARE URGED TO MONITOR WEATHER DEVELOPMENTS AND BE
PREPARED TO TAKE ACTION SHOULD FLOODING BE OBSERVED OR A FLASH FLOOD
WARNING ISSUED.

MOTORISTS TRAVELING IN THE WATCH AREA SHOULD LOOK OUT FOR FLOODED ROADWAYS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 9:14 PM CDTFlash Flood WarningEWXEdwards2 hr
May 2, 10:25 PM CDTFlash Flood WarningEWXEdwards, Real3 hr
May 2, 11:13 PM CDTSevere Thunderstorm WarningEWXReal47 min
May 2, 11:18 PM CDTSevere Thunderstorm WarningEWXGillespie57 min
May 2, 11:26 PM CDTSevere Thunderstorm WarningEWXBandera64 min
May 3, 12:07 AM CDTFlash Flood WarningEWXGillespie3 hr
May 3, 12:12 AM CDTFlash Flood WarningEWXBandera, Kerr4 hr
May 3, 1:38 AM CDTFlash Flood WarningEWXEdwards, Real3 hr
May 3, 3:35 AM CDTFlash Flood WarningEWXGillespie115 min
May 3, 4:09 AM CDTFlash Flood WarningEWXBandera, Edwards, Kerr, Real6 hr
May 3, 4:09 AM CDTFlash Flood WarningEWXKendall6 hr
May 3, 5:04 AM CDTFlash Flood WarningEWXBlanco3 hr
May 3, 5:25 AM CDTFlash Flood WarningEWXGillespie3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

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.