Alert archive / Texas / Flash Flood Warnings in 1986
Flash Flood Warning 34, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 4, 1986, 9:05 PM CDT for Val Verde County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 1986, 9:05 PM CDT (02:05 UTC)
- Expired
- Jun 5, 1986, 1:00 AM 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 00:00Z, 2.1 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
- 2648 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDRT 050205 FFWDRT TXC465-050600- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DEL RIO TX 905 PM CDT WED JUN 4 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 100 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY IN SOUTH CENTRAL TEXAS...VAL VERDE. AT 900 PM CDT RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN 75 MILES NORTHWEST OF DEL RIO MOVING TOWARD THE SOUTHEAST AT 25 MPH. A SPOTTER REPORTED OVER FOUR INCHES OF RAIN IN LESS THAN 2 HOURS 25 MILES SOUTHEAST OF FT STOCKTON BETWEEN 5 AND 7 PM. CHAPOTE RANCH..17 MILES WEST OF PANDALE..REPORTED 1 INCH OF RAIN AT 850 PM. MOTORISTS TRAVELING IN NORTHERN VAL VERDE COUNTY SHOULD NOT DRIVE INTO FLOODED LOW AREAS AND LOW WATER CROSSINGS. CAMPERS ALONG THE DEVILS AND PECOS RIVERS SHOULD MOVE TO HIGH GROUND IMMEDIATELY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. TAKE ANY NEEDED PROTECTIVE ACTION NOW. REPORT ANY FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE.
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 4, 8:29 PM CDT, 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 830 PM CDT WED JUN 4 1986 ...STRONG THUNDERSTORMS OVER EASTERN BEXAR COUNTY AND NORTHWEST WILSON COUNTY... A LINE OF STRONG THUNDERSTORMS HAS FORMED OVER EASTERN BEXAR COUNTY AND NORTHWEST WILSON COUNTY. THIS LINE IS LOCATED JUST SOUTH OF INTERSTATE 10 AND IS MOVING NORTH ABOUT 15 MPH. THESE THUNDERSTORMS CONTAIN HEAVY RAIN. MOTORISTS ARE URGED TO USE CAUTION WHEN DRIVING THROUGH THE STORMS SINCE VISIBILITIES WILL BE REDUCED DUE TO HEAVY RAIN. ALSO..BECAUSE OF THE TORRENTIAL RAINS WHICH OCCURRED LAST NIGHT OVER THIS AREA..LOW AREAS IN THE ROADWAY AND LOW WATER CROSSINGS WILL BE QUICK TO FLOOD.
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.