Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 9, 1986, 4:48 PM CDT for Kerr County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 9, 1986, 4:48 PM CDT (21:48 UTC)
- Expired
- May 9, 1986, 8:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Kerr 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, 9.8 hours before the alert went out and 163 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
- 2443 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 11.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 092148 FFWSAT TXC265-100145- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 448 PM CDT FRI MAY 9 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTH CENTRAL TEXAS...KERR AT 445 PM CDT STRONG THUNDERSTORMS CONTINUED ACROSS KERR COUNTY. BETWEEN 3 AND 4 INCHES OF RAIN HAVE FALLEN IN WESTERN AND CENTRAL PORTIONS OF THE COUNTY WITH WATER OVER SEVERAL ROADS. ADDITIONAL HEAVY RAINFALL IS EXPECTED. 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. A FLASH FLOOD WATCH CONTINUES THROUGH TONIGHT FOR THE TEXAS HILL COUNTRY AND ADJACENT AREAS JUST TO THE SOUTH OF THE HILL COUNTRY. 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 O=R 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, May 9, 4:14 PM CDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 415 PM CDT FRI MAY 9 1986 A TORNADO WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL TEXAS UNTIL 10 PM THIS FRIDAY EVENING. THIS WATCH INCLUDES WILLIAMSON.. TRAVIS AND HAYS COUNTIES AND ALL COUNTIES TO THE WEST.. NORTHWEST AND NORTH OF AUSTIN. AT 415 PM WEATHER RADAR SHOWS A VERY HEAVY THUNDERSTORM 20 MILES SOUTHWEST OF FREDERICKSBURG MOVING SLOWLY TOWARD THE NORTHEAST. OTHER LIGHT SHOWERS ARE SOUTH AND WEST OF AUSTIN.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:28 PM CDT | Severe Thunderstorm Warning | EWX | Mills | 62 min |
| May 8, 7:31 PM CDT | Severe Thunderstorm Warning | EWX | Webb | 59 min |
| May 9, 3:22 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 68 min |
| May 9, 3:34 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 56 min |
| May 9, 4:04 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 56 min |
| May 9, 4:35 PM CDT | Flash Flood Warning | EWX | Val Verde | 4 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.