Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 2, 1987, 6:32 PM CDT for Gonzales County, Wilson County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 2, 1987, 6:32 PM CDT (23:32 UTC)
- Expired
- Jun 2, 1987, 10:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Gonzales County, TX, Wilson 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, 11.5 hours before the alert went out and 101 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 022332
FFWSAT
TXC177-493-030330-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
632 PM CDT TUE JUN 2 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...GONZALES...WILSON
RAINFALL AMOUNTS RANGING FROM 3 INCHES OVER WESTERN GONZALES COUNTY
TO NEAR 5 INCHES IN NORTHERN WILSON COUNTY HAVE OCCURRED WITHIN THE
PAST TWO HOUR. THE SHERIFFS DEPARTMENT IN WILSON COUNTY REPORTS
ROADS CLOSED IN NORTHERN WILSON COUNTY WITH FLASH FLOODING DEVELOPING
AT THIS TIME. STREETS ARE ALSO REPORTED UNDER WATER IN THE CITY OF
GONZALES WITH ADDITIONAL RAIN6 CONTINUING TO FALL.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL 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 2, 1:29 PM CDT, 5 hours 3 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, 3 hours 52 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.
Special weather statement, Jun 2, 3:57 PM CDT, 2 hours 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 350 PM CDT TUE JUN 2 1987 ...SMALL STREAM AND URBAN FLOOD STATEMENT... WEATHER RADAR SHOWS WIDESPREAD MODERATE RAIN OVER A LARGE PORTION OF CENTRAL TEXAS... THE HEAVIEST RAINFALL IS ONCE AGAIN SOUTH THROUGH WEST OF AUSTIN AND IS MOVING NORTH. THAT RAIN EXTENDS FROM LULING TO SEGUIN... CANYON LAKE AND DRIPPING SPRINGS. SEVERAL OF THESE SHOUWES HAVE RAINFALL RATES OF 1 TO 2 INCHES AN HOUR. THE CITY OF AUSTIN IS JUST ABOUT SATURATED... SOME CITY STREETS HAVE BEEN BARRICADED AND ALL CREEKS ARE AT OR NEAR BANKFULL. ADDITIONAL RAINS OF ONLY 1/2 TO 1 INCH WILL LIKELY CAUSE ADDITIONAL FLOODING. MOTORISTS SHOULD USE EXTREME CAUTION AkT LOW WATER CROSSINGS AND BE ALERT ON CITY STREETS WITH POOR DRAINAGE UNTILL HIGH WATER SIBSIDES. A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT.
Special weather statement, Jun 2, 4:47 PM CDT, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 450 PM CDT TUE JUN 2 1987 ...SMALL STREAM AND URBAN FLOOD STATEMENT... WEATHER RADAR SHOWS WIDESPREAD MODERATE RAIN OVER A LARGE PORTION OF CENTRAL TEXAS... THE HEAVIEST RAINFALL EXTENDS FROM COLLEGE STATION TO LULING... JUST NORTH OF SAN ANTONIO AND OVER THE HILL COUNTRY TO BLANCO AND JOHNSON CITY. SEVERAL OF THESE HEAVIER SHOUWES HAVE RAINFALL RATES OF 1 TO 2 INCHES AN HOUR. THE CITY OF AUSTIN REMAINS JUST ABOUT SATURATED... SOME CITY STREETS HAVE BEEN BARRICADED AND ALL CREEKS ARE AT OR NEAR BANKFULL. ADDITIONAL RAINS OF ONLY 1/2 TO 1 INCH WILL CAUSE ADDITIONAL FLOODING. MOTORISTS SHOULD USE EXTREME CAUTION AT LOW WATER CROSSINGS AND BE ALERT ON CITY STREETS WITH POOR DRAINAGE UNTILL HIGH WATER SIBSIDES. A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT.
Special weather statement, Jun 2, 6:14 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 615 PM CDT TUE JUN 2 1987 ...A FLASH FLOOD WATCH REMAINS IN EFFECT OVERNIGHT... WEATHER RADAR SHOWS WIDESPREAD LIGHT TO MODERATE RAINS CONTINUING OVER MOST OF CENTRAL TEXAS. THE HEAVIEST RAINFALL EXTENDS FROM BRYAN/COLLEGE STATION TO SMITHVILLE TO NEAR SAN ANTONIO. OTHER MODERATE SHOWERS ARE LOCATED FROM DRIPPING SPRINGS TO COMFORT. THE SHOWERS TO OUR SOUTHEAST ARE BUILDING SLOWLY TO THE SOUTH... WHILE THE SHOWERS OVER THE HILL COUNTRY ARE MOVING SLOWLY NORTH. RAIN HAS TAPERED OFF IN THE CITY OF AUSTIN BUT SOME CITY STREETS REMAIN BARRICADED AND ALL CREEKS ARE AT OR NEAR BANKFULL. MOTORISTS SHOULD STILL USE CAUTION A T LOW WATER CROSSINGS AND BE ALERT ON CITY STREETS WITH POOR DRAINAGE UNTILL WATER SIBSIDES.
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, 3:50 PM CDT | Flash Flood Warning | EWX | Guadalupe | 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.