Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 88, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 12, 1986, 3:57 AM CDT for Uvalde County, Texas. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Oct 12, 1986, 3:57 AM CDT (08:57 UTC)
- Expired
- Oct 12, 1986, 5:00 AM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Uvalde 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, 9.0 hours before the alert went out and 104 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.
- Mixed-layer CAPE
- 1200 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAAOO KSAT 120857
SVRSAT
TXC463-121000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
357 AM CDT SUN OCT 12 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 500 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN SOUTH CENTRAL TEXAS
..UVALDE
RADAR INDICATES A SEVERE THUNDERSTORM IN SOUTHERN UVALDE COUNTY
MOVING TO THE EAST AT AROUND 30 MPH.
FmREQUENT LIGHTNING..STRONG DAMAGING WINDS AND LARGE HAIL WILL
LIKELY OCCUR IN THIS STORM. IN ADDITION..LOCALLY HEAVY
RAINFALL AND FLOODING OFTEN ACCOMPANY SEVERE THUNDERSTORMS.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, Oct 12, 12:24 AM CDT, 3 hours 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1225 AM CDT SUN OCT 12 1986 AT 1215 PM CDT AN AREA OF HEAVY THUNDERSTORMS WAS LOCATED IN NORTHWEST VAL VERDE COUNTY EXTENDING FROM COMSTOCK TO JUNO TO THE PANDALE AREA. THESE THUNDERSTORMS ARE MOVING SLOWLY TO THE SOUTHEAST. HEAVY RAINFALL IS LIKELY WITH THESE THUNDERSTORMS AND SINCE THE GROUND IS ALREADY SATURATED...RUNOFF WILL OCCUR RAPIDLY. PERSON LIVING IN OR NEAR FLOOD-PRONE AREAS SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF HEAVY RAIN OR FLOOING IS OBSERVED...OR A WARNING IS ISSUED. MOTORISTS SHOULD EXERCISE CARE AND CAUTION...REUCE DRIVING SPEEDS...AND DO NOT ATTEMPT TO DRIVE INTO OR THROUGH FLOODED LOW WATER CROSSINGS. THIS AREA OF THUNDERSTORMS WILL CONTINUE TO MOVE SOUTHEAST WITH THE COLD FRONT. STRONG GUSTY WINDS CAN ALSO BE EXPECTED WITH THIS FRONT. A LAKE WIND ADVISORY IS IN EFFECT FOR LAKE AMISTAD FOR TONIGHT. BOATERS SHOULD REMAIN CLOSE TO SAFE OHARBOR. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED BY YOUR NATIONAL WEA THER SERVICE AS CONDITIONS WARRANT.
Special weather statement, Oct 12, 1:20 AM CDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 125 AM CDT SUN OCT 12 1986 AT 120 AM CDT A LINE OF THUNDERSTORMS 10 MILES WIDE WAS LOCATED FROM COMSTOCK TO LOMA ALTA. THESE THUNDERSTORMS ARE MOVING SLOWLY TO THE SOUTHEAST AND WILL MOVE ACROSS LAKE AMISTAD AND THOUGH DEL RIO DURING THE NEXT COUPLE OF HOURS. HEAVY RAINFALL IS LIKELY WITH THESE THUNDERSTORMS AND SINCE THE GROUND IS ALREADY SATURATED...RUNOFF WILL OCCUR RAPIDLY. PERSON LIVING IN OR NEAR FLOOD-PRONE AREAS SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF HEAVY RAIN OR FLOOING IS OBSERVED...OR A WARNING IS ISSUED. MOTORISTS SHOULD EXERCISE CARE AND CAUTION...REUCE DRIVING SPEEDS...AND DO NOT ATTEMPT TO DRIVE INTO OR THROUGH FLOODED LOW WATER CROSSINGS. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED BY YOUR NATIONAL WEA THER SERVICE AS CONDITIONS WARRANT.
Special weather statement, Oct 12, 2:22 AM CDT, 1 hour 35 minutes before
KSAT 120528 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 220 AM CDT SUN OCT 12 1986 ...SEVERE THUNDERSTORM WARNING EFFECT FOR ZAVALA COUNTY HAS EXPIRED... THUNDERSTORMS CONTINUE TO MOVE THROUGH THE TEXAS HILL COUNTRY EARLY THIS MORNING. THE AREA OF SHOWERS AND THUNDERSTORMS EXTENDS FROM BATESVILLE IN ZAVALA COUNTY NORTHEAST TO THE AUSTIN AREA. THE HEAVIEST THUNDERSTORMS WERE LOCATED WEST OF YANCEY AND SOUTH OF BANDERA. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. BRIEF HEAVY RAIN...GUSTY WINDS TO NEAR 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THE PASSAGE OF THE HEAVIER THUNDERSTORMS. ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS LOCATED FROM DEL RIO TO SOUTH OF EAGLE PASS. THIS ACTIVITY WAS ALSO MOVING EAST AT 30 MILES AN HOUR. < A STRONG COLD FRONT IS CONTINUING TO MOVE SOUTH INTO SOUTH TEXAS. WINDS HAVE SHIFTED TO THE NORTH AND GUSTED TO 32 MILES AN HOUR AT AUSTIN DURING THE PAST HOUR AT AUSTIN. THE THUNDERSTORMS OVER THE TEXAS HILL COUNTRY AND ADJOINING AREAS WILL CONTINUE TO DURING THE NIGHT. PERSONS LIVING IN THE TEXAS HILL COUNTRY AND ADJOINING AREAS SHOULD CONTINUE MONITOR THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Oct 12, 2:24 AM CDT, 1 hour 33 minutes before
KSAT 120528 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 220 AM CDT SUN OCT 12 1986 ...SEVERE THUNDERSTORM WARNING FOR ZAVALA COUNTY HAS EXPIRED... THUNDERSTORMS CONTINUE TO MOVE THROUGH THE TEXAS HILL COUNTRY EARLY THIS MORNING. THE AREA OF SHOWERS AND THUNDERSTORMS EXTENDS FROM BATESVILLE IN ZAVALA COUNTY NORTHEAST TO THE AUSTIN AREA. THE HEAVIEST THUNDERSTORMS WERE LOCATED WEST OF YANCEY AND SOUTH OF BANDERA. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. BRIEF HEAVY RAIN...GUSTY WINDS TO NEAR 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THE PASSAGE OF THE HEAVIER THUNDERSTORMS. ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WAS LOCATED FROM DEL RIO TO SOUTH OF EAGLE PASS. THIS ACTIVITY WAS ALSO MOVING EAST AT 30 MILES AN HOUR. < A STRONG COLD FRONT IS CONTINUING TO MOVE SOUTH INTO SOUTH TEXAS. WINDS HAVE SHIFTED TO THE NORTH AND GUSTED TO 32 MILES AN HOUR AT AUSTIN DURING THE PAST HOUR AT AUSTIN. THE THUNDERSTORMS OVER THE TEXAS HILL COUNTRY AND ADJOINING AREAS WILL CONTINUE TO DURING THE NIGHT. PERSONS LIVING IN THE TEXAS HILL COUNTRY AND ADJOINING AREAS SHOULD CONTINUE MONITOR THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Oct 12, 2:57 AM CDT, 1 hour before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 300 AM CDT SUN OCT 12 1986 AT 250 AM CDT A LINE OF THUNDERSTORMS 10 MILES WIDE WAS LOCATED FROM COMSTOCK TO ROCK SPRINGS WITH ANOTHER LINE EXTENDING FROM ROCK SPRINGS TO JUNO. LITTLE MOVEMENT WAS NOTED ON THESE THUNDERSTORMS. HEAVY RAINFALL HAS BEEN INDICATED BY RADAR BETWEEN COMSTOCK AND JUNO...SINCE THE GROUND IS ALREADY SATURATED...RUNOFF WILL OCCUR RAPIDLY. PERSON LIVING IN OR NEAR FLOOD-PRONE AREAS SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF HEAVY RAIN OR FLOOING IS OBSERVED...OR A WARNING IS ISSUED. MOTORISTS SHOULD EXERCISE CARE AND CAUTION...REUCE DRIVING SPEEDS...AND DO NOT ATTEMPT TO DRIVE INTO OR THROUGH FLOODED LOW WATER CROSSINGS. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED BY YOUR NATIONAL WEA THER SERVICE AS CONDITIONS WARRANT.
Special weather statement, Oct 12, 3:31 AM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 330 AM CDT SUN OCT 12 1986 ...STRONG COLD FRONT MOVING THROUGH THE CITY OF SAN ANTONIO... A STRONG COLD FRONT IS MOVING THROUGH SAN ANTONIO BRINGING GUSTY NORTH WINDS...MODERATE TO HEAVY RAIN...AND FALLING TEMPERATURES. JUST BEFORE 3 AM CDT THE WINDS AT THE SAN ANTONIO WEATHER OFFICE SHIFTED TO THE NORTH AND GUSTED TO 32 MILES AN HOUR. THE TEMPERATURE FELL FROM 77 DEGREES AT 3 AM TO 62 DEGREES. THIS ADDITIONAL RAINFALL WILL CAUSE SOME FLOODING OF LOW WATER CROSSINGS AND UNDERPASSES IN SAN ANTONIO AND SURROUNDING AREAS. THE WEATHER SERVICE RADAR AT HONDO INDICATED THE HEAVIEST THUNDERSTORMS IN COMAL AND GUADALUPE COUNTIES. SHOWERS AND THUNDERSTORMS WERE ALSO SCATTERED OVER MUCH OF SOUTH CENTRAL TEXAS. THE AREA EXTENDED FROM DEL RIO AND EAGLE PASS NORTHEAST TO AUSTIN. STAY TUNED TO YOUR LOCAL TV...RADIO...OR NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTBS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 10:47 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 73 min |
| Oct 12, 3:11 AM CDT | Flash Flood Warning | EWX | Travis | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning in 1986
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.