Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 28, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 2, 1987, 3:50 PM CDT for Guadalupe County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 2, 1987, 3:50 PM CDT (20:50 UTC)
- Expired
- Jun 2, 1987, 6:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Guadalupe 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, 8.8 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
- 1868 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 022050
FFWSAT
TXC187-022345-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
350 PM CDT TUE JUN 2 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...GUADALUPE
A STRONG THUNDERSTORM HAS BEEN STATIONARY OVER SOUTHERN GUADALUPE
COUNTY ABOUT 15 MILES SOUTH OF SEGUIN TEXAS. THREE TO FIVE INCHES OF
RAIN HAS FALLEN OVER SOUTHERN GUADALUPE COUNTY AND SEVERAL ROADS HAVE
BEEN CLOSED DUE TO HIGH WATER. THUNDERSTORMS CONTINUE TO BUILD TO
THE SOUTH AND HEAVY RAINS WILL LIKELY CONTINUE FOR THE NEXT ONE TO
TWO HOURS.
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.
PLEASE LISgTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING 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 2, 10:27 AM CDT, 5 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1020 AM CDT TUE JUN 2 1987 ...FLASH FLOOD WATCH CONTINUES IN EFFECT THROUGH TODAY.... WEATHER RADAR CONTINUES TO SHOW SHOWERS AND THUNDERSTORMS... MAINLY OVER THE HILL COUNTRY. LIGHT RAIN WAS NOTED IN A BAND ABOUT 50 MILES WIDE EXTENDING FROM NEW BRAUNFELLS TO STONEWALL TO BROWNWOOD. . MODERATE TO HEAVY SHOWERS WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR EXTENDED FROM CANYON LAKE TO JOHNSON CITY TO LAKE BUCHANAN. THESE HEAVIER SHOWERS ARE MOVING NORTH NORTHEAST AT 15 MILES AN HOUR. SEVERAL MODERATE TO HEAVY SHOWERS HAVE ALREADY MOVED ACROSS BLANCO AND HAYS COUNTIES DURING THE MORNING AND THOSE 2 COUNTIES ARE THE FOhCAL POINT OF THE CURRENT HEAVY SHOWERS. SMALL STREAMS AND CREEKS IN BLANCO AND HAYS COUNTIES WILL BE BANKFULL AND LOW WATER CROSSINGS WILL BE UNDER RAPIDLY MOVING WATERS. USE CAUTION IN THAT AREA THROUGH MID DAY.
Special weather statement, Jun 2, 12:00 PM CDT, 3 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1155 AM CDT TUE JUN 2 1987 ...FLASH FLOOD WATCH CONTINUES IN EFFECT THROUGH TODAY.... WEATHER RADAR CONTINUES TO SHOW SHOWERS AND THUNDERSTORMS... MAINLY OVER THE HILL COUNTRY JUST WEST OF AUSTIN. LIGHT RAIN WAS RANDOMLY SCATTERED OVER MOST OF CENTRAL TREXAS. MODERATE TO HEAVY SHOWERS WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR EXTENDED FROM NORTH OF NEW BRAUNFELS TO WIMBERLY... DRIPPING SPRINGS... LAKE TRAVIS AND LIBERTY HILL. HEAVY RAINS MOVING ACROSS HAYS AND WESTERN TRAVIS COUNTIES AND MOVING INTO BURNET AND WILLIAMSON COUNTIES WILL CAUSE A RAPID RISE ON CREEKS AND SMALL STREAMS THROUGH THE EARLY AFTERNOON HOURS. AVOID LOW WATER CROSSINGS IF AT ALL POSSIBLE AND USE CAUTION THROUGH THE MIDDLE OF THE AFTERNOON.
Special weather statement, Jun 2, 1:29 PM CDT, 2 hours 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 130 PM CDT TUE JUN 2 1987 ...SMALL STREAM AND URBAN FLOOD STATEMENT... WEATHER RADAR SHOWS WIDESPREAD LIGHT TO MODERATE RAIN OVER A LARGE PORTION OF CENTRAL TEXAS... AND THE HEAVIEST RAINFALL IS MOVING THROUGH OUR IMMEDIATE CENTRAL TEXAS AREA. RAINFALL REPORTS OF 11/4 TO NEAR 2 INCHES HAVE BEEN RECEIVED FROM AREAS IN NORTHWESTERN TRAVIS COUNTY AND IN SOUTHWEST WILLIAMSON COUNTY. ALL SMALL STREAMS AND CREEKS ARE RUNNING BANKFULL AND SOME URBAN STREET FLOODING HAS BEEN REPORTED IN SOUTHWEST WILLIAMSON COUNTY. MOTORISTS SHOULD USE SPECIAL CAUTION AT LOW WATER CROSSINGS AND CITY STREETS WITH POOR DRAINAGE. A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON.
Special weather statement, Jun 2, 2:40 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 240 PM CDT TUE JUN 2 1987 ...SMALL STREAM AND URBAN FLOOD STATEMENT... WEATHER RADAR SHOWS WIDESPREAD LIGHT TO MODERATE RAIN OVER A LARGE PORTION OF CENTRAL TEXAS... THE HEAVIEST RAINFALL HAS JUST PASSED THROUGH THE GEORGETOWN... AUSTIN... SAN MARCOS CORRIDOR. IN ITS WAKE CREEKS ARE ALL BANKFULL AND SOME CITY STREETS ARE FLOODED. WATER WILL NOW BE RECEDING AT 240 PM THE HEAVIEST RAINFALL EXTENDED FROM CAMERON TO THORNDALE BASTROP LOCKHART AND NORTH OF SEGUIN AND IS MOVING EAST AT 10 MPH. MOTORISTS SHOULD STILL USE CAUTION AT LOW WATER CROSSINGS AND CITY STREETS WITH POOR DRAINAGE UNTILL HIGH WATER SIBSIDES. A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 10:45 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 70 min |
| Jun 1, 11:05 PM CDT | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Jun 1, 11:42 PM CDT | Flash Flood Warning | EWX | Zavala | 2 hr |
| Jun 2, 6:32 PM CDT | Flash Flood Warning | EWX | Gonzales, Wilson | 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.