Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 48, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 4, 1987, 3:32 AM CDT for Caldwell County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 1987, 3:32 AM CDT (08:32 UTC)
- Expired
- Jun 4, 1987, 6:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Caldwell 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
Victoria Regiona, TX (KVCT), launched 00:00Z, 8.5 hours before the alert went out and 130 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
- 175 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 986 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 040832 FFWAUS TXC055-041130- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN TX 332 AM CDT THU JUN 4 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 630 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF TEXAS...CALDWELL AUSTIN RADAR HAS INDICATED STRONG THUNDERSTORMS WITH HEAVY RAINS MOVING NORTH AND NORTHWESTWARD OVER CALDWELL COUNTY FOR THE PAST TWO HOUR. THE HEAVIEST RAINFALL HAS BEEN OVER THE SOUTHERN PORTIONS BUT THAT IS NOW MOVING NORTHWARD. MORE HEAVY RAINS ARE INDICATED TO THE SOUTH OF CALDWELL COUNTY MOVING NORTHWARD WHICH WILL ADD TO THE FLOODING PROBLEM. THIS IS A DANGEROUS SITUATION. TAKE APPROPRIATE ACTION. REMEMBER THAT DEATHS DURING FLASH FLOODING ARE OFTEN RELATED TO MOTORISTS DRIVING THROUGH 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, 10:36 PM CDT, 4 hours 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1035 PM CDT WED JUN 3 1987
THE FOLLOWING ARE 24 HOUR RAINFALL REPORTS FROM IN AND AROUND BEXAR
COUNTY AND SAN ANTONIO...ENDING AT 7 PM WEDNESDAY EVENING:
---OUTSIDE BEXAR COUNTY--- ---INSIDE BEXAR COUNTY---
CAMP VERDE 4.25 ---NORTHSIDE---
BANADERA 4W 4.11 AIRPORT 4N 1.15
DEVINE 2.80 SAN ANTONIO AIRPORT 0.94
HONDO 10N 2.35 ALAMO STADIUM 2.30
MEDINA 12W 5.19 BEACON HILL 1.90
MEDINA 6N 6.50 BLANCO AND 410 1.50
MEDINA LAKE 2.32 BULVERDE 1.40
PIPE CREEK 2.47 EDISON HIGH SCHOOL 2.20
FRDRKSBG RD/HILLCREST 1.75
---NORTHWEST SIDE--- I-10 AND FRESNO 2.23
CASTLE HILLS 1.85 LEON SPRINGS 1.55
CHARTER OAKS 1.90
<
ROLLING RIDGE 1.35 ---CENTRAL AREA---
THUNDERBIRD HILLS 1.38 NEAR FORT SAM 1.90
UNIVERSITY PARK 1.80 TRINITY UNIVERSITY 2.75
VANCE JACKSON AND 410 1.80
WOODLAWN HEIGHTS 2.00 ---WEST SIDE---
COOLCREST 1.15
---SOUTHWEST SIDE--- HIGHWAY 90W-410 1.50
1604 AND HIGHWAY 281 S 2.30 NEAR LACKLAND 1.25
MOGSORD ROAD AND 1604 1.80
---SOUTHEAST SIDE--- ---NORTHEAST SIDE---
FORT SAM HOUSTON 1 N 1.15 CAMELOT 2.00
HIGHLAND HILLS 2.50 FORT SAM HOUSTON 1.30
PECAN VALLEY 2.60 LARK LAIR 1.17
VON ORMY 1.65 ALAMO HEIGHTS 1.75
CHINA GROVE 2.25 NORTHWOOD ESTATES 1.30
HIGHLAND HIGH SCHOOL 2.75 WINDCREST 1.50
WURZBACH/ I-35 1.70
THESE REPORTS ARE FROM THE SAN ANTONIO/BEXAR SKYWARM RADIO/HAM
OPERATORS RAINFALL NETWORK.Special weather statement, Jun 3, 11:53 PM CDT, 3 hours 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1145 PM CDT WED JUN 3 1987 ...THE FLASH FLOOD WATCH CONTINUES THROUGH THE NIGHT TONIGHT... JUST BEFORE MIDNIGHT...WEATHER RADAR SHOWED SCATTERED HEAVY THUNDER- STORMS FORMING IN THE SAN MARCOS AREA...MOVING WESTWARD AT 10 TO 15 MPH. OTHER MOSTLY LIGHT RAINS WERE ALSO REDEVELOPING TO THE SOUTH AND SOUTHEAST. WIDESPREAD RAINS COVER ABOUT 60 PERCENT OF CENTRAL TEXAS..NORTH AND WEST OF A WACO...AUSTIN AND JUNCTION LINE. OTHER HEAVY SHOWERS REMAIN WEST AND NORTHWEST OF SAN ANTONIO...OVER THE FLOODED MEDINA RIVER WATERSHED. DURING THE LAST SEVERAL HOURS...RAIN ACTIVITY APPEARS TO BE INCREASING IN AREAL COVERAGE, WITH ONLY A FEW SPOTS SHOWING INTENSITY LEVEL INCREASES. OUR MAIN CONCERN FOR THE NEXT 3 OR 4 HOURS WILL BE THOSE COUNTIES TO THE SOUTH AND WEST OF AUSTIN, CALDWELL...HAYS...BLANCO AND GILLESPIE. PERSONS IN THOSE COUNTIES SHOULD STAY ALERT FOR THE ONSET OF HEAVY RAIWNS AND BE PREPARED IF WARNINGS OR FLOODING TAKES PLACE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 1:53 AM CDT | Flash Flood Warning | EWX | Gonzales | 3 hr |
| Jun 4, 3:10 AM CDT | Flash Flood Warning | EWX | Kendall | 110 min |
| Jun 4, 4:24 AM CDT | Flash Flood Warning | EWX | Travis | 3 hr |
| Jun 4, 4:44 AM CDT | Flash Flood Warning | EWX | Lavaca | 2 hr |
| Jun 4, 5:02 AM CDT | Flash Flood Warning | EWX | Gonzales | 4 hr |
| Jun 4, 6:35 AM CDT | Flash Flood Warning | EWX | Lavaca | 2 hr |
| Jun 4, 7:31 AM CDT | Flash Flood Warning | EWX | Caldwell, Hays, Travis | 6 hr |
| Jun 4, 8:30 AM CDT | Flash Flood Warning | EWX | Lavaca | 2 hr |
| Jun 4, 8:46 AM CDT | Flash Flood Warning | EWX | Burnet, Williamson | 3 hr |
| Jun 4, 8:47 AM CDT | Flash Flood Warning | EWX | Gonzales | 4 hr |
| Jun 4, 11:47 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jun 4, 2:30 PM CDT | Severe Thunderstorm Warning | EWX | Calhoun | 60 min |
| Jun 4, 4:08 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio | 4 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.