Alert archive / Texas / Tornado Warnings in 1988

Tornado Warning 28, NWS Austin/San Antonio, TX

September 17, 1988Val Verde County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Sep 17, 1988, 4:10 PM CDT for Val Verde County, Texas. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Sep 17, 1988, 4:10 PM CDT (21:10 UTC)
Expired
Sep 17, 1988, 5:00 PM CDT
In force
50 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Val Verde 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, 9.2 hours before the alert went out and 66 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 1988-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 453 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 1988-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.193958Sfc1 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
453 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDRT 172107
TORDRT
TXC465-172200-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DEL RIO TX
410 PM CDT SAT SEP 17 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY IN

SOUTHCENTRAL TEXAS...VAL VERDE.

AT 400 PM CDT SHERIFF DEPUTY HAS REPORTED 3 SEPERATE FUNNEL CLOUDS
WITH ONE LOW TO THE GROUND ABOUT 31/2 MILES SOUTHEAST OF LAUGHLIN
AFB MOVING WEST NORTHWEST. NUMEROUS SHORT LIVED TORNADOES HAVE BEEN
REPORTED IN EASTERN VAL VERDE TODAY.

IF THREATENING CONDITIONS ARE SIGHTED..BE PREPARED TO MOVE TO A PLACE OF
SAFETY IMMEDIATELY. TO REPORT A TORNADO OR OTHER SEVERE WEATHER..ASK THE
NEAREST LAW ENFORECEME_NT AGENCY TO RELAY YOUR REPORT TO THE NEAREST
NATIONAL WEATHER SERVICE OFFICE.
A TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT TONIGHT.  A FLASH FLOOD
WATCH REMAINS IN EFFECT THROUGH SUNDAY.

What forecasters said that day

The local office's own words before this tornado 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, Sep 17, 10:48 AM CDT, 5 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1045 AM CDT SAT SEPT 17 1988

TORNADO WATCH IS IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON FOR PORTIONS
SOUTH CENTRAL TEXAS...THIS IS TO THE SOUTH AND SOUTHWEST OF AUSTIN.

A FLASH FLOOD WATCH IS IN EFFECT FOR THE SAME GENERAL AREA FOR TODAY AND
TONIGHT.

AT 10:45 AM CDT HEAVY SHOWERS AND THUNDERSTORMS HAD MOVED IN HAYS
COUNTY.  RADAR INDICATED THE STRONGEST ACTIVITY JUST TO THE EAST AND
THE NORTHWEST OF SAN MARCOS.

THESE SHOWERS AND THUNDERSTORMS ARE MOVING TOWARD THE NORTHWEST AT
20 TO 25 MPH AND WILL MOVE INTO BLANCO COUNTY IN THE NEXT HOUR.

OTHER BANDS OF SHOWERS AND THUNDERSTORMS COVER A LARGE PORTION OF
CENTRAL TEXAS.  ALL: THESE BANDS ARE MOVING NORTHWEST.
Local storm report, Sep 17, 11:43 AM CDT, 4 hours 27 minutes before
STORM REPORT...ADDITIONAL REPORTS...
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1140 AM CDT SAT SEP 17 1988

TIME         EVENT

940 AM      A TORNADO REPORTED SEEN BY KELLY AFB PERSONNEL TWO AND ONE
             HALF MILES NORTHWEST OF THE BASE.
1013 AM      FUNNEL CLOUD REPORTED NEAR BOERNE REPORTED BY THE KENDALL
             COUNTY SHERIFFS OFFICE. IT WAS MOVING NORTHWEST.
1018 AM      TEX DEPT OF PUBLIC SAFETY REPORTED A FUNNEL CLOUD IN UVALDE
             COFUNTY NEAR KNIPPA
1025 AM      FUNNEL CLOUD 3 MI SOUTHWEST OF SABINAL
1030 AM      A TORNADO DESTROYED A MOBILE HOME AND DAMAGED A SHED NEAR
             THE INTERSECTION OF IH10 AND HARDY RD ON THE SOUTH SIDE OF
             SAN ANTONIO. THIS APPARENTLY WAS FROM A EARLIER
             OCCURANCE.
1032 AM      REPORT FROM THE LAW ENFORCEMENT THAT 18 HOMES DAMAGED IN
             SAN ANTONIO
1030 AM      FROM A RADIO STATION IN KERRVILLE...POSSIBLE FUNNEL CLOUD
             NEAR BOERNE.
1050 AM      TORNADO REPORTED JUST INSIDE THE EDWARDS COUNTY LINE IN THE
             NORTHWEST PART OF THE COUNTY. REPORTED BY A RAINFALL
             NETWORK OBSERVER TO THE DEL RIO WSO.
Special weather statement, Sep 17, 12:13 PM CDT, 3 hours 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1210 PM CDT SAT SEPT 17 1988

TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT THIS AFTERNOON AND EVENING
FOR A A LARGE PORTION OF CENTRAL TEXAS.  THIS WATCH AREA DOES INCLUDE
TRAVIS COUNTY AND ALL SURROUNDING COUNTIES IN CENTRAL TEXAS.

AT 1205 PM CDT AUSTIN RADAR INDICATED NURMEROUS BANDS OF HEAVY
SHOWERS AND THUNDERSTORMS ALL THROUGH CENTRAL TEXAS.  THE STRONGEST AND
MOST PERSISENT RAIN WAS IN A BAND FROM LULING...IN CALWELL COUNTY...
NORTHWESTWARD OVER SAN MARCOS AND KYLE TO JOHNSON CITY.

ALL RAIN AND THUNDERSTORMS CONTINUE TO MOVE NORTHWEST AT 20 TO 25 MPH.

NEARLY AN INCH OF RAIN HAS BEEN REPORTED AT SAN MARCOS IN THE PAST HOUR.

MOTORISTS SHOULD APPROACH LOW WATER CROSSINGS WITH CAUTION SINCE LOCALLY
HEAVY RAINS MAY CAUSE RAPIDLY RISING WATERS IN LOCAL STREAMS AND
CREEKS.
Special weather statement, Sep 17, 1:07 PM CDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
110 PM CDT SAT SEPT 17 1988

TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR A
LARGE PORTION OF CENTRAL TEXAS.  THIS WATCH AREA DOES INCLUDE
TRAVIS COUNTY AND ALL SURROUNDING COUNTIES IN CENTRAL TEXAS.

AT 105 PM CDT AUSTIN RADAR INDICATED NURMEROUS BANDS OF HEAVY
SHOWERS AND THUNDERSTORMS ALL THROUGH CENTRAL TEXAS.  THE STRONGEST AND
MOST PERSISENT THUNDSTORM ACTIVITY WAS IN A BAND FROM JUST SOUTHEAST
OF KYLE NORTHWESTWARD TO NEAR MARBLE FALLS.

ALL RAIN AND THUNDERSTORMS CONTINUE TO MOVE NORTHWEST AT 20 TO 25 MPH.

OVER AN HALF INCH OF RAIN WAS REPORTED AT LULING...IN CLADWELL COUNTY.

MOTORISTS SHOULD APPROACH LOWJ WATER CROSSINGS WITH CAUTION SINCE LOCALLY
HEAVY RAINS MAY CAUSE RAPIDLY RISING WATERS IN LOCAL STREAMS AND
CREEKS.
Special weather statement, Sep 17, 2:01 PM CDT, 2 hours 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
200 PM CDT SAT SEPT 17 1988

TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR A
LARGE PORTION OF CENTRAL TEXAS.  THIS WATCH AREA DOES INCLUDE
TRAVIS COUNTY AND ALL SURROUNDING COUNTIES IN CENTRAL TEXAS.

AT 155 PM CDT AUSTIN RADAR INDICATED NURMEROUS BANDS OF HEAVY
SHOWERS AND THUNDERSTORMS ALL THROUGH CENTRAL TEXAS.  THE STRONGEST
AREAS OF ACTIVITY ARE JUST NORTH OR MARBLE FALLS...IN BURNET COUNTY...
AND NEAR LIBERTY HILL IN WILLIAMSON COUNTY.

ALL RAIN AND THUNDERSTORMS CONTINUE TO MOVE NORTH NORTHWEST AT 25 MPH.

MOTORISTS SHOULD APPROACH LOW WATER CROSSINGS WITH CAUTION SINCE LOCALLY
HEAVY RAINS MAY CAUSE RAPIDLY RISING WATERS IN LOCAL STREAMS AND
CREEKS.
Special weather statement, Sep 17, 2:54 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
255 PM CDT SAT SEPT 17 1988

TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR A
LARGE PORTION OF CENTRAL TEXAS.  THIS WATCH AREA DOES INCLUDE
TRAVIS COUNTY AND ALL SURROUNDING COUNTIES IN CENTRAL TEXAS.

AT 250 PM CDT AUSTIN RADAR INDICATED NURMEROUS BANDS OF HEAVY
SHOWERS AND THUNDERSTORMS ALL THROUGH CENTRAL TEXAS.  THE STRONGEST
AREAS OF ACTIVITY ARE BETWEEN AUSTIN AND MARBLE FALLS...JUST SOUTH OF
BLANCO...AND JUST EAST OF FREDERICKSBURG.

ALL RAIN AND THUNDERSTORMS CONTINUE TO MOVE NORTH NORTHWEST AT 25 MPH.

MOTORISTS SHOULD APPROACH LOW WATER CROSSINGS WITH CAUTION SINCE LOCALLY
HEAVY RAINS MAY CAUSE RAPIDLY RISING WATERS IN LOCAL STREAMS AND
CREEKS.

PM

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 5:51 AM CDTTornado WarningEWXBexar69 min
Sep 17, 6:03 AM CDTTornado WarningEWXKarnes, Wilson57 min
Sep 17, 7:34 AM CDTTornado WarningEWXBandera, Bexar, Medina41 min
Sep 17, 7:34 AM CDTTornado WarningEWXKarnes, Wilson41 min
Sep 17, 8:08 AM CDTTornado WarningEWXAtascosa, Medina67 min
Sep 17, 8:44 AM CDTTornado WarningEWXComal46 min
Sep 17, 8:57 AM CDTTornado WarningEWXBexar48 min
Sep 17, 9:42 AM CDTTornado WarningEWXBexar63 min
Sep 17, 10:16 AM CDTTornado WarningEWXKendall, Kerr59 min
Sep 17, 10:23 AM CDTTornado WarningEWXUvalde67 min
Sep 17, 11:01 AM CDTTornado WarningEWXEdwards59 min
Sep 17, 11:09 AM CDTFlash Flood WarningEWXBandera, Medina, Uvalde3 hr
Sep 17, 11:15 AM CDTTornado WarningEWXVal Verde60 min
Sep 17, 12:20 PM CDTTornado WarningEWXKinney55 min
Sep 17, 12:40 PM CDTTornado WarningEWXVal Verde80 min
Sep 17, 1:44 PM CDTTornado WarningEWXKendall46 min
Sep 17, 2:20 PM CDTTornado WarningEWXVal Verde55 min
Sep 17, 2:45 PM CDTTornado WarningEWXVal Verde60 min
Sep 17, 5:14 PM CDTTornado WarningEWXBexar31 min
Sep 17, 5:40 PM CDTTornado WarningEWXVal Verde60 min
Sep 17, 6:40 PM CDTTornado WarningEWXVal Verde60 min

Nearby

Tornado Warnings in Texas, 1988Every tornado warning in 1988Tornadoes in 1988

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.