Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 36, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 6, 1986, 10:29 PM CDT for Blanco County, Texas. It was in force for 91 min.
The area
The counties it named.
The facts
- Issued
- Jun 6, 1986, 10:29 PM CDT (03:29 UTC)
- Expired
- Jun 7, 1986, 12:00 AM CDT
- In force
- 91 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Blanco 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, 3.5 hours before the alert went out and 214 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
- 2162 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 070329 FFWAUS TXC031-070500- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN TX 1029 PM CDT FRI JUN 6 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1200 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF TEXAS...BLANCO AT 1020 PM CDT HEAVY THUNDERSTORM WAS MOVE ACROSS THE SOUTHERN AREA OF BLANCO COUNTY. REPORTS OF 3.50 INCHES OF RAIN HAS OCCURED ON ROCKY CREEK BETWEEN JOHNSON CITY AND STOMEWALL PRODUCING A FOUR FOOT RISE ON THE CREEK. LOW WATER CROSSING ARE LIKELY FLOODED OVER WESTERN AND SOUTHERN AREAS OF BLANCO COUNTY. REMEMBER THAT DEATHS DURING FLASH FLOODING ARE OFTEN RELATED TO MOTORISTS DRIVING THROUGH FLOODED LOW WATER CROSSINGS. IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE. PLEASE LISTEN TO YOUR LOCAL RADIO..TV..OR NOAA WEATHER RADIO FOR LATER STATEMENTS REGARDING THIS HEAVY RAIN EPISODE.
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, Jun 6, 6:33 PM CDT, 3 hours 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 625 PM CDT FRI JUN 06 1986 ...ISOLATED HEAVY THUNDERSTORM OVER PARTS OF THE HILL COUNTRY... AT 620 PM CDT RADAR INDICATED ISOLATED VERY HEAVY THUNDERSTORMS FROM NORTH OF FREDERICKSBURG NORTHWEST THROUGH THE MASON AND BRADY AREA TO SOUTHEAST OF SAN ANGELO. OTHER ISOLATED THUNDERSTORMS WERE LOCATED NEAR TAYLOR AND NORTH OF COLLEGE STATION WITH ONLY LIGHT RAIN FROM THE KILLEEN AND LAMPASAS AREA TO NEAR HAMILTON. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT NEAR 10 MPH. FLOODING OF LOW WATER CROSSINGS IS POSSIBLE OVER SOUTHWESTERN LLANO AND NORTHERN GILLESPIE COUNTIES. THERE IS ALSO THE POSSIBILITY OF SOME LOW WATER CROSSINGS FLOODED IN LAMPASAS AND MILLS FROM HEAVY THUNDERSTORMS IN THIS AREA LATE THIS AFTERNOON. TRAVEL WITH CAUTION IN THESE AREAS THE NEXT FEW HOURS.
Special weather statement, Jun 6, 7:43 PM CDT, 2 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 745 PM CDT FRI JUN 6 1986 A LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST INTO NORTHERN EDWARDS AND KERR COUNTIES. REPORTS FROM LOCATIONS WITHIN KIMBLE COUNTY TO THE NORTH INDICATED THAT SOME OF THESE THUNDERSTORMS PRODUCED RAIN OF NEAR TWO INCHES IN LESS THAN AN HOUR. THE STRONGEST STORMS EXTENDED FROM EAST OF JUNCTION IN KIMBLE COUNTY TO JUST NORTH OF ROCKSPRINGS IN EDWARDS COUNTY. RESIDENTS OF EDWARDS..KERR AND REAL COUNTIES SHOULD REMAIN ALERT TO THE POSSIBILITY OF HEAVY RAIN. LOW-LYING OR FLOOD-PRONE AREAS..ESPECIALLY NEAR THE HEADWATERS OF THE GUADALUPE RIVER ARE PARTICULARLY VULNERABLE. GROUND CONDITIONS ACROSS THE AREA ARE STILL RATHER MOIST FROM THE RAINS OF EARLIER THIS WEEK..SO HEAVY RAIN IS LIKELY TO PRODUCE RAPID RUNOFF ..THUS ADDING TO ANY FLOOD PROBLEMS. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR WARNINGS.
Special weather statement, Jun 6, 8:23 PM CDT, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 823 PM CDT FRI JUN 6 1986 STRONG THUNDERSTORMS WITH HEAVY RAINS WERE ABOUT 20 MILES NORTHEAST OF LOMA ALTA ON HIGHWAY 277. THE HEAVY RAINS CONTINUED IN THIS AREA FOR ABOUT 2 HOURS. SOME REPORTS OF UP TO 2 AND 1/2 INCHES HAVE BEEN REPORTED WITH THESE THUNDERSTORMS IN A HOUR. PERSONS DRIVING ON HIGHWAY 277 NORTH..OR VACATIONING ALONG THE DRY DEVILS RIVER IN THE NORTHEAST PART OF VAL VERDE COUNTY SHOULD BE ALERT TO THE POSSIBILITY OF FLOODED LOW WATER CROSSINGS..OR RAPID RISES OF WATER IN DRAWS AND CREEK BEDS. IF YOU OBSERVE ANY AMOUT WATER COMING DOWN A DRAW OR CREEK BED IN NORTHEAST PART OF VAL VERDE COUNTY..DO NOT WAIT..MOVE TO HIGHER GROUND IMMEDIATELY. A SMALL TRICKLE CAN BECOME A LIFE THREATING TORRENT OF WATER IN MINUTES. YOU SHOULD REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR TO THE NATIONAL WEATHER SERVICE.
Special weather statement, Jun 6, 8:24 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 823 PM CDT FRI JUN 6 1986 STRONG THUNDERSTORMS WITH HEAVY RAINS WERE ABOUT 20 MILES NORTHEAST OF LOMA ALTA ON HIGHWAY 277. THE HEAVY RAINS CONTINUED IN THIS AREA FOR ABOUT 2 HOURS. SOME REPORTS OF UP TO 2 AND 1/2 INCHES HAVE BEEN REPORTED WITH THESE THUNDERSTORMS IN A HOUR. PERSONS DRIVING ON HIGHWAY 277 NORTH..OR VACATIONING ALONG THE DRY DEVILS RIVER IN THE NORTHEAST PART OF VAL VERDE COUNTY SHOULD BE ALERT TO THE POSSIBILITY OF FLOODED LOW WATER CROSSINGS..OR RAPID RISES OF WATER IN DRAWS AND CREEK BEDS. IF YOU OBSERVE ANY AMOUNT WATER COMING DOWN A DRAW OR CREEK BED IN NORTHEAST PART OF VAL VERDE COUNTY..DO NOT WAIT..MOVE TO HIGHER GROUND IMMEDIATELY. A SMALL TRICKLE CAN BECOME A LIFE THREATING TORRENT OF WATER IN MINUTES. YOU SHOULD REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR TO THE NATIONAL WEATHER SERVICE.
Special weather statement, Jun 6, 9:34 PM CDT, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
935 PM CDT JUN 6 1986
...THUNDERSTORMS CONTINUE TO POSE A THREAT...
SHOWERS AND A FEW THUNDERSTORMS CONTINUE TO MOVE DEEPER INTO SOUTH
CENTRAL TEXAS THIS EVENING. AT 930 PM CDT..A LINE OF THUNDERSTORMS WAS
LOCATED FROM NEAR BLANCO SOUTHWEST TO BOERNE. ALTHOUGH SHOWING SIGNS
OF WEAKENING OVER THE PAST TWO HOURS..SOME OF THESE THUNDERSTORMS STILL
CARRY THE POTENTIAL OF PRODUCING LOCALLY HEAVY RAINFALL. THIS LINE WAS
CONTAINED WITHIN A BROAD AREA OF LIGHT TO MODERATE SHOWERS THAT COVERED
MUCH OF REAL..KERR..KENDALL AND BANDERA COUNTIES. MOVEMENT CONTINUES
SOUTHEAST..BUT AT A FASTER RATE OF 20 MILES AN HOUR.
PERSONS LOCATED WITHIN LOW-LYING OR FLOOD-PRONE AREAS..ESPECIALLY IN
AND NEAR THE RIVER PLAINS OF THE GUADALUPE AND MEDINA RIVERS SHOULD BE
ALERT TO POSSIBLE FLOODING FOR THE NEXT FEW HOURS. LOW WATER CROSSINGS
ARE ALSO SUSCEPTIBLE TO RAPID FLOODING AND MOTORISTS SHOULD NOT ATTEMPT
TO DRIVE ACROSS ROADS INUNDATED BY WATER OF UNKNOWN DEPTH.
ONE FINAL REMINDER..WITH THE INCREASE IN SPEED OF THE LINE OF STORMS..
STRONG AND POSSIBLY DAMAGING WIND NOW BECOMES A REAL THREAT.
STAY TUNE^D TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS AND/OR
WARNINGS.Special weather statement, Jun 6, 10:17 PM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1017 PM CDT FRI JUN 6 1986 AT 1015 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN 50 MILES NORTH OF DEL RIO MOVING TO THE SOUTH SOUTHEAST AT 20 MPH. GLASSCOCK RANCH..12 MILES NORTHEAST OF JUNO..REPORTED ONE INCH OF RAIN IN 40 MINUTES AT 940 PM. HEAVY RAIN..SMALL HAIL..STRONG WINDS AND FREQUENT LIGHTNING ARE POSSIBLE WITH THESE STORMS. BE ALERT TO THE POSSIBILIT}Y OF FLOODED LOW WATER CROSSINGS..OR RAPID RISES OF WATER IN DRAWS AND CREEK BEDS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 8:27 PM CDT | Flash Flood Warning | EWX | Gillespie | 3 hr |
| Jun 6, 10:36 PM CDT | Flash Flood Warning | EWX | Edwards | 2 hr |
| Jun 6, 11:09 PM CDT | Flash Flood Warning | EWX | Bexar | 111 min |
| Jun 7, 12:55 AM CDT | Flash Flood Warning | EWX | Val Verde | 2 hr |
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.