Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 68, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 12, 1986, 3:11 AM CDT for Travis County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 12, 1986, 3:11 AM CDT (08:11 UTC)
- Expired
- Oct 12, 1986, 6:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Travis 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
Victoria Regiona, TX (KVCT), launched 00:00Z, 8.2 hours before the alert went out and 186 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
- 1052 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 120811 FFWAUS TXC453-121115- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN TX 311 AM CDT SUN OCT 12 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 615 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF TEXAS...TRAVIS AT 305 AM CDT A VERY HEAVY THUNDERSTORMS CONTINUE OVER TRAVIS COUNTY THESE THUNDERSTORMS HAVE PRODUCED NEAR 2 INCHES OF RAIN &OVER PARTS OF AUSTIN AND TRAVIS COUNTY. REMEMBER THAT DEATHS DURING FLASH FLOODING ARE OFTEN RELATED TO MOTORISTS DRIVING THROUGH FLOODED LOW WATER CROSSINGS.
What forecasters said that day
The local office's own words before this flash flood 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 11, 11:54 PM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1155 PM CDT SAT OCT 11 1986 ...PRE-FRONTAL THUNDERSTORMS NOW MOVING INTO THE HIGHLAND LAKES... JUST BEFORE MIDNIGHT...RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS FROM SOUTH OF WACO PAST KILLEEN...LAMPASAS...LAKE BUCHANAN...JUNCTION ...TO SOUTHEAST OF DEL RIO. THE LINE OF THUNDERSTORMS WAS MOVING TOWARDS THE SOUTHEAST AT 25 MPH. PERSONS IN CENTRAL AND SOUTH CENTRAL TEXAS SHOULD BE PREPARED FOR BRIEF GUSTY WINDS AND HEAVY RAINS AS THESE STORMS MOVE THROUGH. COLD FRONTAL PASSAGE SHOULD FOLLOW IMMEDIATEDLY BEHIND THE THUNDER- STORMS...WITH SHIFTING WINDS TO THE NORTH AT 15 TO 30 MPH AND GUSTY. CLOUDY AND MUCH COLDER TEMPERA+TURES...LIKELY TO BE 15 TO 20 DEGREES COLDER...FOR THE NEXT SEVERAL DAYS.
Special weather statement, Oct 12, 12:24 AM CDT, 2 hours 47 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, 1 hour 51 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, 49 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, 47 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, 14 minutes 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.
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, 3:57 AM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 63 min |
Nearby
Flash Flood Warnings in Texas, 1986Every flash flood 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.