Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 18, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 29, 1987, 11:58 AM CDT for Edwards County, Kerr County, Real County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 29, 1987, 11:58 AM CDT (16:58 UTC)
- Expired
- May 29, 1987, 3:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Edwards County, TX, Kerr County, TX, Real 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, 5.0 hours before the alert went out and 118 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
- 248 J/kg
- Mixed-layer CIN
- -411 J/kg
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 291658
FFWSAT
TXC137-265-385-292000-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1158 AM CDT FRI MAY 29 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...EDWARDS...KERR...REAL
THUNDERSTORMS WITH HEAVY RAINFALL HAVE REDEVELOPED OVER THESE
COUNTIES AND ARE EXPECTED TO CONTINUE FOR THE NEXT FEW HOURS.
RAINFALL AMOUNTS FROM THREE TO EIGHT INCHES FELL LAST NIGHT AND
SEVERAL MORE INCHES ARE EXPECTED THIS AFTERNOON.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.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 29, 6:57 AM CDT, 5 hours 1 minute before
BULLETIN URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 650 AM CDT FRI MAY 29 1987 THUNDERSTORMS...WITH FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN... HAVE MOVED INTO SAN ANTONIO AND BEXAR COUNTY. FLOODING OF STREETS... HIGHWAYS AND UNDERPASSES...ALONG WITH CREEKS AND LOW-WATER CROSSINGS... CAN BE EXPECTED FOR SEVERAL HOURS THIS FRIDAY MORNING. RUSH-HOUR TRAFFIC WILL BE SEVERELY AFFECTED AS STREETS AND HIGHWAYS BECOME WET AND SLICK AND VISIBILITIES REDUCED IN THE HEAVY RAIN AREAS. MOTORISTS SHOULD BE EXTREMELY CAREFUL AND REDUCE DRIVING SPEEDS ACCORDINGLY. FLOODED LOW-WATER CROSSINGS SHOULD NOT BE ATTEMPTED. A FLASH FLOOD WATCH IS IN EFFECT FOR THE HILL COUONTRY...EDWARDS PLATEAU AND ADJACENT SOUTH CENTRAL TEXAS THIS MORNING. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
Special weather statement, May 29, 9:08 AM CDT, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 910 AM CDT FRI MAY 29 1987 THUNDERSTORMS...WITH FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN... CONTINUE ACROSS THE HILL COUNTRY AND ADJACENT SOUTH CENTRAL TEXAS. SOME OF THESE THUNDERSTORMS ARE JUST NOW BEGINNING TO ENTER KERR... KENDALL AND COMAL COUNTIES. ADDITIONAL RAINFALL FROM THESE STORMS COULD CAUSE LOCALIZED FLOODING OF ROADS AND STREETS...LOW-WATER CROSSINGS AND CREEK$S AND TRIBUTARIES LEADING INTO THE GUADALUPE RIVER. PLEASE STAY TUNED FOR LATER WEATHER AND RIVER FLOOD STATEMENTS OR WARNINGS.
Special weather statement, May 29, 10:00 AM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1000 AM CDT FRI MAY 29 1987 ...SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL NOON CDT... ...FLASH FLOOD WATCH IN EFFECT THIS MORNING... AT 950 AM AUSTIN RADAR CONTINUES TO SHOW WIDESPREAD RAIN OVER CENTRAL TEXAS WITH THE STRANGEST THUNDERSTORMS FROM NEAR KERRVILLE TO SOUTH OF SAN ANTONIO TO NEAR VICTORIA TO NEAR WHARTON. ALSO THUNDERSTORMS WERE NEAR GEORGETOWN AND ROUND ROCK TO SOUTH OF BASTROP. THE ACTIVITY IS MOVING TO THE EAST AND NORTHEAST NEAR 20 MPH. NO SEVERE WEATHER OR FLASH FLOODING HAS BEEN RPORTED IN THE AREA FOR THE LAST COUPLE OF HOURS BUT MANY SMALL STREAMS CONTINUE BANKFULL AND MANY LOW WATER CROSSINGS ARE STILL DANGEROUS. MOTORISTS ARE URGED TO USE EXTREME CAUTION WHILE DRIVING AND DO NOT ATTEMPT TO DRIVE THROUGH LOW WATER CROSSINGS OR WATER OF UNKNOWN DEPTH. KEEP INFORMED OF THIS DANGEROUS SITUATION.
Special weather statement, May 29, 10:42 AM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1040 AM CDT FRI MAY 29 1987 ...FLASH FLOOD WATCH CONTINUES FOR TODAY... THE SEVERE THUNDERSTORM WATCH FOR THE AREA HAS BEEN CANCELLED. AT 1030 AM AUSTIN RADAR CONTINUES TO SHOW WIDESPREAD RAIN OVER CENTRAL TEXAS WITH THE STRANGEST THUNDERSTORMS FROM NEAR KERRVILLE TO SOUTH OF HONDO AND EASTWARD TO COLLEGE STATION AND HOUSTON AND GALVESTON. VERY STRONG THUNDERSTORMS WITH FLOODING ARE OCCURRING NEAR MEDINA LAKE WEST OF SAN ANTONIO. ACTIVITY IS MOVING EAST AND NORTHEAST NEAR 20 MPH. NO FLASH FLOODING HAS BEEN RPORTED IN THE AREA FOR THE PAST SEVERAL HOURS BUT MANY SMALL STREAMS CONTINUE BANKFULL AND MANY LOW WATER CROSSINGS ARE STILL DANGEROUS. MOTORISTS ARE URGED TO KEEP INFORMED AND DO NOT ATTEMPT TO DRIVE THROUGH LOW WATER CROSSINGS OR THROUGH WATER OVER ROADWAYS. THIS HEAVY RAINFALL EVENT WILL CONTINUE THROUGH TODAY. STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR \LATEST INFORMATION.
Special weather statement, May 29, 11:44 AM CDT, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1143 AM CDT FRI MAY 29 1987 ...FLASH FLOOD WATCH CONTINUES FOR TODAY... AT 1130 AM AUSTIN RADAR CONTINUES TO SHOW WIDESPREAD RAIN EAST OF A LINE FROM WACO TO MARBLE FALLS TO JUST WEST OF KERRVILLE AND SOUTHWARD. STRONG THUNDERSTORMS WERE OCCURRING NEAR KERRVILLE TO SAN ANTONIO. ACTIVITY IS MOVING EAST AND NORTHEAST NEAR 20 MPH. NO FLASH FLOODING HAS BEEN RPORTED IN THE AREA FOR THE PAST SEVERAL HOURS BUT MANY SMALL STREAMS CONTINUE BANKFULL AND MANY LOW WATER CROSSINGS ARE STILL DANGEROUS. MOTORISTS ARE URGED TO KEEP INFORMED AND DO NOT ATTEMPT TO DRIVE THROUGH LOW WATER CROSSINGS OR THROUGH WATER OVER ROADWAYS. THIS HEAVY RAINFALL EVENT WILL CONTINUE THROUGH TODAY. STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR LATEST INFORMATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:05 PM CDT | Tornado Warning | EWX | Val Verde | 70 min |
| May 28, 8:20 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 70 min |
| May 28, 9:13 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 62 min |
| May 28, 9:55 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 65 min |
| May 28, 10:18 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 57 min |
| May 28, 11:14 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 61 min |
| May 29, 12:24 AM CDT | Severe Thunderstorm Warning | EWX | Real, Uvalde | 66 min |
| May 29, 12:24 AM CDT | Severe Thunderstorm Warning | EWX | Kinney | 66 min |
| May 29, 1:35 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina, Uvalde | 55 min |
| May 29, 2:32 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina | 58 min |
| May 29, 2:35 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 2 hr |
| May 29, 3:14 AM CDT | Flash Flood Warning | EWX | Travis, Williamson | 2 hr |
| May 29, 3:19 AM CDT | Flash Flood Warning | EWX | Bandera, Kendall, Kerr, Real | 4 hr |
| May 29, 3:19 AM CDT | Flash Flood Warning | EWX | Medina, Uvalde | 4 hr |
| May 29, 3:30 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr, Real, Uvalde | 60 min |
| May 29, 3:30 AM CDT | Severe Thunderstorm Warning | EWX | Kendall | 60 min |
| May 29, 3:30 AM CDT | Severe Thunderstorm Warning | EWX | Medina | 60 min |
| May 29, 4:39 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Hays | 4 hr |
| May 29, 4:39 AM CDT | Flash Flood Warning | EWX | Lee | 4 hr |
| May 29, 4:39 AM CDT | Flash Flood Warning | EWX | Blanco | 4 hr |
| May 29, 4:55 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina, Uvalde | 65 min |
| May 29, 4:58 AM CDT | Severe Thunderstorm Warning | EWX | Kinney, Maverick | 62 min |
| May 29, 7:27 AM CDT | Flash Flood Warning | EWX | Bandera, Medina, Uvalde | 4 hr |
| May 29, 1:32 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 58 min |
| May 29, 2:23 PM CDT | Flash Flood Warning | EWX | Edwards, Kerr, Real | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1987Every flash flood warning in 1987
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.