Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 89, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 1987, 5:05 PM CDT for Val Verde County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 13, 1987, 5:05 PM CDT (22:05 UTC)
- Expired
- Jun 13, 1987, 9:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde 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, 10.1 hours before the alert went out and 66 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
- 1983 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 910 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 52 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 KDRT 132203 FFWDRT TXC465-140200- BULLETIN - EBS ACTIVITATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DEL RIO TX 505 PM CDT SAT JUN 13 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY IN SOUTHCENTRAL TEXAS...VAL VERDE. AT 500 PM CDT THUNDERSTORMS WITH HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING WERE OBSERVED IN DEL RIO. RADAR ALSO INDICATED THUNDERSTORMS 20 MILES NORTH OF DEL RIO. THESE STORMS WERE MOVING TO THE SOUTHEAST AT 10 MPH. THESE THUNDERSTORMS DUMPED .80 INCHES OF RAIN AT THE DEL RIO INTERNATIONAL AIRPORT IN 30 MINUTES. SEVERAL STREETS AND LOW LYING AREAS IN DEL RIO ARE FLOODED NOW. PEOPLE IN THE SAN FELIPE CREEK AREA SHOULD PREPARE TO SEEK HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOTORISTS TRAVELING IN VAL VERDE COUNTY SHOULD EXERCISE EXTREME CAUTION. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES..DIPS..OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM..EVEN A SMALL ONE..ON FOOT. A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR VAL VERDE COUNTY THROUGH TONIGHT.g
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 10:17 PM CDT | Flash Flood Warning | EWX | Blanco, Gillespie | 3 hr |
| Jun 12, 10:17 PM CDT | Flash Flood Warning | EWX | Burnet, Hays, Travis, Williamson | 3 hr |
| Jun 13, 7:20 AM CDT | Flash Flood Warning | EWX | Bexar, Medina | 4 hr |
| Jun 13, 8:21 AM CDT | Flash Flood Warning | EWX | Atascosa | 3 hr |
| Jun 13, 11:15 AM CDT | Flash Flood Warning | EWX | McMullen | 2 hr |
| Jun 13, 11:23 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell | 3 hr |
| Jun 13, 12:06 PM CDT | Flash Flood Warning | EWX | Kinney, Uvalde | 3 hr |
| Jun 13, 12:16 PM CDT | Flash Flood Warning | EWX | Travis | 3 hr |
| Jun 13, 1:46 PM CDT | Flash Flood Warning | EWX | Kerr, Real | 3 hr |
| Jun 13, 2:28 PM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Travis | 3 hr |
| Jun 13, 2:28 PM CDT | Flash Flood Warning | EWX | Williamson | 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.