Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 30, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 4, 1986, 7:33 AM CDT for Bexar County, Comal County, Guadalupe County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 1986, 7:33 AM CDT (12:33 UTC)
- Expired
- Jun 4, 1986, 12:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Comal County, TX, Guadalupe 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 12:00Z, 0.6 hours before the alert went out and 156 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
- 1750 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 041233 FFWSAT TXC029-091-187-325-061700- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 733 AM CDT WED JUN 4 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1200 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTH CENTRAL TEXAS...BEXAR...COMAL...GUADALUPE AND MEDINA AT 730 AM CDT..A LINE OF STRONG THUNDERSTORMS WAS MOVING EASTWARD INTO BEXAR COUNTY AND THE CITY OF SAN ANTONIO. THIS LINE IS MOVING TOWARDS THE NORTHEAST AT 15 MPH. A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED. TAKE NECESSARY PRECAUTIONS AS REQUIRED TO PROTECT LIFE AND PROPERTY. REMEMBER..DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS. DANGEROUS LIGHTNING AND GUSTY WINDS OFTEN ACCOMPANY FLASH FLOOD PRODUCING THUNDERSTORMS. LIFE-THREATENING FLOODING IS OCCURRING IN SAN ANTONIO AND BEXAR COUNTY AT THIS TIME. RAINFALL TOTALS THIS MORNING HAVE BEEN BETWEEN 5 AND 10 INCHES IN SOME AREAS OF THE CITY AND COUNTY. THE THUNDERSTORMS MOVING IN FROM THE WEST COULD ADD ANOTHER COUPLE OF INCHES TO THIS TOTAL..GREATLY ADDING TO THE THREAT OF MORE FLOODING. IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY. 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 STATION FOR LATER STATEMENTS OR WARNINGS REGARDING THIS HEAVY RAIN EVENT.
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 4, 5:45 AM CDT, 1 hour 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
540 AM CDT WED JUN 04 1986
...A FLASH FLOOD WATCH IN EFFECT FOR CENTRAL TEXAS AND THE ADJACENT
HILL COUNTRY TODAY...
AT 535 AM CDT RADAR INDICATED LIGHT RAIN AND SCATTERED THUNDERSTORMS
FROM AUSTIN WESTWARD TO JOHNSON CITY..KERRVILLE..SAN ANTONIO TO HONDO.
HEAVIEST HAVE OCCURRED IN AND AROUND SAN ANTONIO METROPLEX. AS MUCH AS
6 INCHES OF RAIN AS OCCURRED SINCE MIDNIGHT IN SOME PARTS OF THE CITY
BEXAR COUNTY.
LATER TODAY..THUNDERSTORMS WITH THE POTENTIAL OF PRODUCING HEAVY RAINS
IN A SHORT PERIOD OF TIME ARE EXPECTED TO DEVELOP OVER PARTS OF THE
WATCH AREA. THE GROUND REMAINS NEAR SATURATION FROM PREVIOUS HEAVY
RAINS OF THE LAST FEW DAYS. THEREFORE ANY ADDITIONA HEAVY RAINS THAT
OCCUR IN THE WATCH AREA WILL LIKELY PRODUCE FLASH FLOODING.
2 PAGES
KEEP INFORMED OF DEVELOPING THUNDERSTORMS IN YOUR AREA BY TUNING TO
NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.Special weather statement, Jun 4, 5:55 AM CDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 540 AM CDT WED JUN 04 1986 ...A FLASH FLOOD WATCH IN EFFECT FOR CENTRAL TEXAS AND THE ADJACENT HILL COUNTRY TODAY... AT 535 AM CDT RADAR INDICATED LIGHT RAIN AND SCATTERED THUNDERSTORMS FROM AUSTIN WESTWARD TO JOHNSON CITY..KERRVILLE..SAN ANTONIO TO HONDO. HEAVIEST HAVE OCCURRED IN AND AROUND SAN ANTONIO METROPLEX. AS MUCH AS 6 INCHES OF RAIN AS OCCURRED SINCE MIDNIGHT IN SOME PARTS OF THE CITY BEXAR COUNTY. LATER TODAY..THUNDERSTORMS WITH THE POTENTIAL OF PRODUCING HEAVY RAINS IN A SHORT PERIOD OF TIME ARE EXPECTED TO DEVELOP OVER PARTS OF THE WATCH AREA. THE GROUND REMAINS NEAR SATURATION FROM PREVIOUS HEAVY RAINS OF THE LAST FEW DAYS. THEREFORE ANY ADDITIONA HEAVY RAINS THAT OCCUR IN THE WATCH AREA WILL LIKELY PRODUCE FLASH FLOODING. KEEP INFORMED OF DEVELOPING THUNDERSTORMS IN YOUR AREA BY TUNING TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Jun 4, 6:08 AM CDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 540 AM CDT WED JUN 04 1986 ...A FLASH FLOOD WATCH IN EFFECT FOR CENTRAL TEXAS AND THE ADJACENT HILL COUNTRY TODAY... AT 535 AM CDT RADAR INDICATED LIGHT RAIN AND SCATTERED THUNDERSTORMS FROM AUSTIN WESTWARD TO JOHNSON CITY..KERRVILLE..SAN ANTONIO TO HONDO. HEAVIEST HAVE OCCURRED IN AND AROUND SAN ANTONIO METROPLEX. AS MUCH AS 6 INCHES OF RAIN AS OCCURRED SINCE MIDNIGHT IN SOME PARTS OF THE CITY OF SAN ANTONIO AND BEXAR COUNTY. LATER TODAY..THUNDERSTORMS WITH THE POTENTIAL OF PRODUCING HEAVY RAINS IN A SHORT PERIOD OF TIME ARE EXPECTED TO DEVELOP OVER PARTS OF THE WATCH AREA. THE GROUND REMAINS NEAR SATURATION FROM PREVIOUS HEAVY RAINS OF THE LAST FEW DAYS. THEREFORE ANY ADDITIONAL HEAVY RAINS THAT OCCUR IN THE WATCH AREA WILL LIKELY PRODUCE FLASH FLOODING. KEEP INFORMED OF DEVELOPING THUNDERSTORMS IN YOUR AREA BY TUNING TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Jun 4, 7:32 AM CDT, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 725 AM CDT WED JUN 04 1986 ...A FLASH FLOOD WATCH IN EFFECT FOR CENTRAL TEXAS AND THE ADJACENT HILL COUNTRY TODAY... AT 725 AM CDT RADAR INDICATED LIGHT RAIN AND SCATTERED THUNDERSTORMS FROM KILLEEN TO AUSTIN TO NEAR LULING AND SEGUIN TO WELL SOUTH OF SAN ANTONIO AND WESTWARD TO UVALDE TO KERRVILLE AND BACK TO KILLEEN. THE HEAVIEST THUNDERSTORMS ARE FROM SAN MARCOS TO SOUTHWEST OF THE CITY OF SAN ANTONIO..WHERE MORE THAN 6 INCHES OF RAIN HAS FALLEN. LATER TODAY..THUNDERSTORMS WITH THE POTENTIAL OF PRODUCING HEAVY RAINS IN A SHORT PERIOD OF TIME ARE EXPECTED TO DEVELOP OVER PARTS OF THE WATCH AREA. THE GROUND REMAINS NEAR SATURATION FROM PREVIOUS HEAVY RAINS OF THE LAST FEW DAYS. THEREFORE ANY ADDITIONAL HEAVY RAINS THAT OCCUR IN THE WATCH AREA WILL LIKELY PRODUCE FLASH FLOODING. KEEP INFORMED OF DEVELOPING THUNDERSTORMS IN YOUR AREA BY TUNING TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. IT CAN NOT BE EMPHASIZED ENOUGH TO MOTORISTS TO AVOID ALL LOW WATER CROSSINGS THAT ARE UNDER WATER AS THIS IS A VERY DANGEROUS SITUATION AND MOST FATALITIES OCCURR WHEN MOTORISTS DRIVE INTO DEEP WATER.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 8:58 PM CDT | Flash Flood Warning | EWX | Burnet | 3 hr |
| Jun 4, 12:47 AM CDT | Flash Flood Warning | EWX | Bexar, Comal | 4 hr |
| Jun 4, 3:10 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 5 hr |
| Jun 4, 3:10 AM CDT | Flash Flood Warning | EWX | Medina | 5 hr |
| Jun 4, 7:33 AM CDT | Flash Flood Warning | EWX | Medina | 4 hr |
| Jun 4, 9:01 AM CDT | Flash Flood Warning | EWX | Atascosa | 3 hr |
| Jun 4, 11:45 AM CDT | Flash Flood Warning | EWX | Bexar | 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.