Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 4, 1986, 3:10 AM CDT for Medina County, Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 1986, 3:10 AM CDT (08:10 UTC)
- Expired
- Jun 4, 1986, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Medina 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, 8.2 hours before the alert went out and 168 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
- 727 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 040803 FFWSAT TXC029-091-187-325-041300- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 303 AM CDT WED JUN 4 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...BEXAR...COMAL...GUADALUPE AND MEDINA AT 3 AM CDT..A STRONG THUNDERSTORM WAS LOCATED ALONG THE BEXAR- COMAL-GUADALUPE COUNTIES LINE..MOVING LITTLE. THIS THUNDERSTORM IS LOCATED OVER THE CIBOLO CREEK WATERSHED AND HAS PRODUCED OVER THREE AND A HALF INCHES OF RAIN DURING THE PAST 3 HOURS IN PARTS OF EASTERN SAN ANTONIO AND EASTERN BEXAR COUNTY. IN ADDITION.. THUNDERSTORMS ARE MOVING INTO MEDINA COUNTY..TOWARD BEXAR COUNTY. NEARLY AN INCH OF RAIN HAS BEEN REPORTED AT HONDO DURING THE PAST HOUR FROM THESE STORMS. MORE THUNDERSTORMS MOVING EASTWARD ACROSS THE RIO GRANDE TOWARD SOUTH CENTRAL TEXAS COULD PRODUCE AN ADDED 3 TO 5 INCHES OF RAINFALL DURING THE DAY. 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.
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 3, 9:24 PM CDT, 5 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 930 PM CDT TUE JUN 3 1986 ...STRONG THUNDERSTORM IN WESTERN GONZALES COUNTY... A STRONG THUNDERSTORM HAS BECOME STATIONARY IN WESTERN GONZALES COUNTY. THE THUNDERSTORM WAS LOCATED JUST WEST OF THE CITY OF GONZALES NEAR THE COMMUNITY OF OAK FOREST. THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAIN. LOW AREAS IN ROADWAYS AND A FEW LOW WATER CROSSINGS ARE LIKELY UNDER WATER. MOTORISTS DRIVING ON 90A THROUGH WESTERN GONZALES COUNTY SHOULD BE ALERT FOR REDUCED VISIBILITIES IN HEAVY RAIN AND WATER STANDING IN LOW AREAS.
Special weather statement, Jun 3, 9:55 PM CDT, 5 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 955 PM CDT TUE JUN 3 1986 AT 940 PM CDT A LINE OF THUNDERSHOWERS HAD MOVED INTO VAL VERDE COUNTY. THE THUNDERSHOWERS ARE MOVING VERY SLOWLY TO THE EAST. HEAVY RAIN IS INDICATED IN SOME OF THE SHOWERS. WITH THE SLOW MOVEMENT AND ALREADY SATURATED GROUND..RUN OFF COULD OCCUR RAPIDLY. MOTORIST SHOUD USE CAUTION IN LOW AREAS AND IF FLOODED THEY SHOULD NOT ATTEMPT TO CROSS. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS NECESSARY.
Special weather statement, Jun 3, 11:12 PM CDT, 3 hours 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1115 PM CDT TUE JUN 3 1986 ...LINE OF THUNDERSTORMS ALONG THE GUADALUPE AND GONZALES COUNTY... A LINE OF THUNDERSTORMS EXTENDS ALONG THE GUADALUPE AND GONZALES COUNTY LINE NORTHEAST TO NEAR LULING TEXAS. THIS LINE OF THUNDERSTORMS IS MOVING SLOWLY NORTH AND IS CAUSING HEAVY RAINS IN NORTHWEST GONZALES COUNTY AND SOUTHEAST GUADALUPE COUNTY. MOTORISTS DRIVING THROUGH& THIS AREA ARE URGED TO BE ALERT FOR REDUCED VISIBILITIES IN HEAVY RAIN AND WATER COVERING LOW AREAS IN THE ROAD.
Special weather statement, Jun 3, 11:38 PM CDT, 3 hours 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1135 PM CDT TUE JUN 3 1986 ...STRONG THUNDERSTORM OVER SOUTHERN BEXAR COUNTY... A STRONG THUNDERSTORM HAS FORMED OVER SOUTHERN BEXAR COUNTY. THE THUNDERSTORM IS LOCATED SOUTH OF LOOP 410 AND NEAR EAST LAKE AND IS MOVING SLOWLY NORTHEAST. THIS THUNDERSTORM CONTAINS HEAVY RAIN AND GUSTY WINDS. MOTORISTS DRIVING THROUGH SOUTHERN BEXAR COUNTY SHOULD BE ALERT FOR REDUC4ED VISIBILITIES IN HEAVY RAIN AND WATER COVERING LOW AREAS ON THE ROADWAY. FISHERMEN ON THE LAKES IN SOUTHERN AND EASTERN BEXAR COUNTY SHOULD SEEK SHELTER FROM LIGHTNING AND GUSTY WINDS IMMEDIATELY.
Special weather statement, Jun 3, 11:53 PM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1153 PM CDT TUE JUN 3 1986 AT 1150 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS NORTHWEST OF DEL RIO..NEAR COMSTOCK. THESE STORMS WERE MOVING TO THE EAST AT 15 MILES AN HOUR. HEAVY RAIN..SMALL HAIL..STRONG WINDS..AND FREQUENT LIGHTNING ARE POSSIBLE WITH THESE STORMS. BE ALERT FOR POSSIBLE FLOODING OF LOW WATER CROSSINGS AND LOW LYING AREAS. MOTORISTS SHOULD USE EXTREME CAUTION IN LOW LYING AREAS. LISTEN TO NATIONAL WEATHER SERVICE RADIO FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.
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, 7:33 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 4 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.