Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 63, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 10, 1987, 2:15 PM CDT for Bexar County, Comal County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 10, 1987, 2:15 PM CDT (19:15 UTC)
- Expired
- Jun 10, 1987, 6:15 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Comal 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 12:00Z, 7.3 hours before the alert went out and 169 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
- 721 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 32 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 101915
FFWSAT
TXC029-091-102315-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
215 PM CDT WED JUN 10 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...BEXAR...COMAL
AT 215 PM CDT...NUMEROUS SHOWERS AND THUNDERSHOWERS...SOME CONTAINING
MODERATE TO LOCALLY HEAVY RAINS...CONTINUE TO MOVE NORTHWARD INTO AND
ACROSS BEXAR AND COMAL COUNTIES. FLOODING OF LOW-WATER CROSSINGS...
ROADS...STREETS...UNDERPASSES...FLOOD DRAINAGE DITCHES AND CREEKS IN
AND AROUND SAN ANTONIO...BEXAR AND COMAL COUNTIES CAN BE EXPECTED FOR
THE REST OF THIS AFTERNOON INTO THE EARLY EVENING.
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.
DANGEROUS LIGHTNING AND GUSTY WINDS OFTEN ACCOMPANY FLASH FLOOD
PRODUCING THUNDERSTORMS.
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGAiRDING THIS SEVERE WEATHER EVENT.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 10, 8:39 AM CDT, 5 hours 36 minutes before
BULLETIN SMALL STREAM AND URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 835 AM CDT WED JUN 10 1987 A LINE OF SHOWERS AND THUNDERSHOWERS...SOME CONTAINING BRIEF HEAVY RAIN...IS LOCATED IN WESTERN BEXAR COUNTY AND ACROSS THE EXTREME WEST SIDE OF SAN ANTONIO. THIS LINE IS ORIENTED NORTH-SOUTH...WITH MOVEMENT TOWARD THE NORTH AT 10 MPH. THIS POSITION PUTS THE LINE OVER THE LEON CREEK WATERSHED AND LOW- LYING AREAS AND LOW-WATER CROSSINGS CLOSE TO TO LEON CREEK. PERSONS LIVING NEAR LEON CREEK...THE WESTERN PORTION OF SAN ANTONIO AND BEXAR COUNTY SHOULD BE ON THE ALERT FOR BRIEF HEAVY RAINFALL AND POSSIBLE FLOODING. MOTORISTS SHOULD NOT ATTEMPT...UNDER ANY CIRCUMSTANCES...TO CROSS FLOODED ROADS...STREETS OR LOW-WATER CROSSINGS. DUE TO THE GROUND BEING SUPER-SATURATED FROM PAST WEEKS HEAVY DOWNPOURS...THE GROUND WILL NOT HOLD ANY MORE WATER. THIS ADDITIONAL RAIN WILL NOT SOAK IN BUT RUN OFF INTO ALREADY SWOLLEN OR FLOODED CREEKS...RIVERS AND LOW-WATER CROSSINGS...AND ONLY AMPLIFY THE ALREAD-HAZARDOUS POTENTIAL FOR MORE FLOODING. A FLASH FLOOD AND FLOOD WATCH REMAINS IN EFFECT TODAY FOR THE HILL COUNTRY...SOUTH CENTRAL AND SOUTHEAST TEXAS...INCLUDING THME SAN ANTONIO METROPOLITAN AREA...BEXAR AND SURROUNDING COUNTIES. PLEASE STAY TUNED TO LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS HEAVY RAIN AND FLOOD SITUATION...SO PLEASE STAY TUNED.
Special weather statement, Jun 10, 12:47 PM CDT, 1 hour 28 minutes before
BULLETIN SMALL STREAM AND URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1145 PM CDT WED JUN 10 1987 SHOWERS AND THUNDERSHOWERS...SOME CONTAINING MODERATE TO BRIEFLY HEAVY RAIN...CONTINUE TO MOVE ACROSS SAN ANTONIO AND BEXAR COUNTY. FLOODING OF ROADS...STREETS...UNDERPASSES...DRAINAGE DITCHES AND LOW-WATER CROSSINGS CAN BE EXPECTED MUCH OF THIS AFTERNOON IN AND AROUND SAN ANTONIO AND BEXAR COUNTY. LEON...SALADO...CIBOLO AND OLMOS CREEKS WILL LIKELY EXPERIENCE HIGH WATER AND FLOODING FROM THIS RAIN. MOTORISTS SHOULD NOT ATTEMPT...UNDER ANY CIRCUMSTANCES...TO CROSS FLOODED ROADS...STREETS OR LOW-WATER CROSSINGS. DUE TO THE GROUND BEING SUPER-SATURATED FROM PAST WEEKS HEAVY DOWNPOURS...THE GROUND WILL NOT HOLD ANY MORE WATER. THIS ADDITIONAL RAIN WILL NOT SOAK IN BUT RUN OFF INTO ALREADY SWOLLEN OR FLOODED CREEKS...RIVERS AND LOW-WATER CROSSINGS...AND ONLY AMPLIFY THE ALREAD-HAZARDOUS POTENTIAL FOR MORE FLOODING. A FLASH FLOOD AND FLOOD WATCH REMAINS IN EFFECT THIS AFTERNOON FOR THE HILL COUNTRY...SOUTH CENTRAL AND SOUTHEAST TEXAS...INCLUDING THE SAN ANTONIO METROPOLITAN AREA...BEXAR AND SURROUNDING COUNTIES. PLEASE LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS HEAVY RAIN AND FLOOD SITUATION.
Special weather statement, Jun 10, 1:43 PM CDT, 32 minutes before
BULLETIN SMALL STREAM FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 145 PM CDT WED JUN 10 1987 FLOODING OF CREEKS AND LOW-WATER CROSSINGS...AS WELL AS ROADS CLOSE TO CREEKS AND LOW-WATER CROSSINGS...CAN BE EXPECTED MUCH OF THIS AFTERNOON ACROSS THE HILL COUNTRY AND ADJACENT SOUTH CENTRAL TEXAS. SHOWERS AND THUNDERSHOWERS...CONTAINING MOSTLY LIGHT TO MODERATE RAINS WITH SOME ISOLATED HEAVY AMOUNTS...CONTINUE TO MOVE NORTH ACROSS THE ALREADY SOAKED GROUND OF SOUTH TEXAS. RUNOFF FROM THESE RAINS WILL CAUSE CREEKS AND LOW-WATER CROSSINGS TO EXPERIENCE SWIFTLY FLOWING FLOOD WATERS. PERSONS LIVING NEAR FLOOD-PRONE CREEKS SHOULD MOVE TO HIGH GROUND IF HEAVY RAIN OR FLEOODING OCCURS. MOTORISTS SHOULD NOT ATTEMPT TO CROSS LOW-WATER CROSSINGS THAT ARE UNDER WATER. < ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED THIS AFTERNOON AND TONIGHT AS CONDITIONS WARRANT.
Special weather statement, Jun 10, 2:01 PM CDT, 14 minutes before
BULLETIN SMALL STREAM AND URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 200 PM CDT WED JUN 10 1987 SHOWERS AND THUNDERSHOWERS...SOME CONTAINING MODERATE TO BRIEFLY HEAVY RAIN...CONTINUE TO MOVE ACROSS SAN ANTONIO AND BEXAR COUNTY. GUSTY WINDS AND LIGHTNING MAY ALSO ACCOMPANY THIS ACTIVITY. FLOODING OF ROADS...STREETS...UNDERPASSES...DRAINAGE DITCHES AND LOW-WATER CROSSINGS CAN BE EXPECTED MUCH OF THIS AFTERNOON IN AND AROUND SAN ANTONIO AND BEXAR COUNTY. LEON...SALADO...CIBOLO AND OLMOS CREEKS WILL LIKELY EXPERIENCE HIGH WATER AND FLOODING FROM THIS RAIN. MOTORISTS SHOULD NOT ATTEMPT...UNDER ANY CIRCUMSTANCES...TO CROSS FLOODED ROADS...STREETS OR LOW-WATER CROSSINGS. DUE TO THE GROUND BEING SUPER-SATURATED FROM PAST WEEKS HEAVY DOWNPOURS...THE GROUND WILL NOT HOLD ANY MORE WATER. THIS ADDITIONAL RAIN WILL NOT SOAK IN BUT RUN OFF INTO ALREADY SWOLLEN OR FLOODED CREEKS...RIVERS AND LOW-WATER CROSSINGS...AND ONLY AMPLIFY THE ALREADY HAZARDOUS POTENTIAL FOR MORE FLOODING. A FLASH FLOOD AND FLOOD WATCH REMAINS IN EFFECT THIS AFTERNOON FOR THE HILL COUNTRY...SOUTH CENTRAL AND SOUTHEAST TEXAS...INCLUDING THE SAN ANTONIO METROPOLITAN AREA...BEXAR AND SUaRROUNDING COUNTIES. PLEASE STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO STATIONS FOR LATER UPDATES ON THIS HEAVY RAIN AND FLOOD SITUATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 2:30 PM CDT | Flash Flood Warning | EWX | Uvalde | 4 hr |
| Jun 10, 6:15 PM CDT | Flash Flood Warning | EWX | Bexar | 60 min |
| Jun 10, 6:41 PM CDT | Flash Flood Warning | EWX | Kendall | 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.