Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 51, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 6, 1986, 3:40 AM CDT for Kendall County, Kerr County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Sep 6, 1986, 3:40 AM CDT (08:40 UTC)
- Expired
- Sep 6, 1986, 8:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Kendall County, TX, 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 00:00Z, 8.7 hours before the alert went out and 188 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
- 2061 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 914 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 060840 FFWSAT TXC259-265-061300- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 340 AM CDT SAT SEP 6 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 800 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTH CENTRAL TEXAS...KENDALL AND KERR AT 340 AM CDT STRONG THUNDERSTORMS WERE INDICATED BY RADAR NEAR KERRVILLE AND COMFORT. THUNDERSTORMS HAVE PERSISTED ALONG A STATIONARY FRONT IN KERR AND KENDALL COUNTIES DURING THE EARLY MORNING HOURS. THE KERRVILLE DEPARTMENT OF PUBLIC SAFETY REPORTED OVER THREE INCHES OF RAIN IN KERRVILLE SINCE MIDNIGHT. A RISE IS EXPECTED ALONG THE GUADALUPE RIVER..AND THE TRIBUTARIES LEADING INTO THE RIVER. PERSONS IN LOW LYING AREAS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. 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. 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, Sep 5, 10:25 PM CDT, 5 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1025 PM CDT FRI SEP 5 1986 AT 1015 PM RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE EASTERN HALF OF VAL VERDE COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED NEAR THE ROUGH CANYON AREA OF LAKE AMISTAD. THUNDERSTORMS WERE ALSO LOCATED WEST AND SOUTHWEST OF DEL RIO IN MEXICO. ANOTHER AREA OF THUNDERSTORMS WAS LOCATED ACROSS SOUTHERN CROCKETT AND SUTTON COUNTIES..ALSO FROM DEL RIO EAST TO SAN ANTONIO. THE PRECIPITATION WAS MOVING TO THE NORTHEAST AT 10 TO 15 MPH. RAINFALL REPORTED FROM WITHIN VAL VERDE COUNTY THIS EVENING HAS BEEN NEAR 1/2 INCH..HOWEVER MAYFIELD STORE SOUTH OF JUNO REPORTED 1.57 INCHES. AS RA IN CONTINUES WATER WILL BEGIN TO ACCUMULATE IN LOW WATER CROSSINGS. MOTORISTS ARE CAUTIONED TO APPROACH LOW WATER CROSSINGS WITH CARE AND TO SLOW DOWN ON WET PAVEMENT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 10:00 PM CDT | Flash Flood Warning | EWX | Bexar | 2 hr |
| Sep 6, 2:20 AM CDT | Flash Flood Warning | EWX | Travis | 3 hr |
| Sep 6, 5:21 AM CDT | Flash Flood Warning | EWX | Blanco | 3 hr |
| Sep 6, 7:44 AM CDT | Flash Flood Warning | EWX | Comal | 4 hr |
| Sep 6, 12:02 PM CDT | Flash Flood Warning | EWX | Comal | 118 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.