Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 46, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 1999, 3:26 PM CDT for Williamson County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 13, 1999, 3:26 PM CDT (20:26 UTC)
- Expired
- Jun 13, 1999, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 8.4 hours before the alert went out and 245 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
- 276 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 6 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 132027 FFWSAT TXC491-132330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 326 PM CDT SUN JUN 13 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... WILLIAMSON COUNTY IN TEXAS * UNTIL 630 PM CDT * AT 325 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN GEORGETOWN...ROUND ROCK AND TAYLOR... MOVING LITTLE MOVEMENT. * RAINFALL RATES OF 2 TO 3 INCHES PER HOUR ARE BE ESTIMATED BY RADAR DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY AND THE ROAD BENEATH MAY NOT BE INTACT. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY...IF YOU CAN DO SO SAFELY. IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY. REMEMBER...MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. PASHOS
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
Local storm report, Jun 13, 11:49 AM CDT, 3 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1149 AM CDT SUN JUN 13 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0840 PM TX WIND DAMAGE
06/12/99 BEXAR TREES BLOWN DOWN, WINDOWS
BROKEN AND POWER OUT IN
SHERTZ REPORTED BY POLICE
DEPARTMENT.
0845 PM TX WIND DAMAGE
06/12/99 GUADALUPE ROOFS BLOWN OFF AND FENCES
BLOWN DOWN IN CIBOLO
REPORTED BY SHERIFFS
DEPARTMENT.
0848 PM TX 55 MPH TSTM GUST
06/12/99 GUADALUPE WIND GUSTS UP TO 55 MPH AT
THE NEW BRAUNFELS AIRPORT.
0950 PM TX WIND DAMAGE
06/12/99 GUADALUPE ROOFS BLOWN OFF IN
GERONIMO REPORTED BY
SHERIFFS DEPARTMENT.Local storm report, Jun 13, 11:49 AM CDT, 3 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1149 AM CDT SUN JUN 13 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0840 PM TX WIND DAMAGE
06/12/99 BEXAR TREES BLOWN DOWN, WINDOWS
BROKEN AND POWER OUT IN
SHERTZ REPORTED BY POLICE
DEPARTMENT.
0845 PM TX WIND DAMAGE
06/12/99 GUADALUPE ROOFS BLOWN OFF AND FENCES
BLOWN DOWN IN CIBOLO
REPORTED BY SHERIFFS
DEPARTMENT.
0848 PM TX 55 MPH TSTM GUST
06/12/99 GUADALUPE WIND GUSTS UP TO 55 MPH AT
THE NEW BRAUNFELS AIRPORT.
0950 PM TX WIND DAMAGE
06/12/99 GUADALUPE ROOFS BLOWN OFF IN
GERONIMO REPORTED BY
SHERIFFS DEPARTMENT.The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:18 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 57 min |
| Jun 12, 8:30 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Jun 12, 8:35 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe, Hays | 55 min |
| Jun 12, 9:18 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe | 57 min |
| Jun 12, 9:18 PM CDT | Severe Thunderstorm Warning | EWX | Kendall | 57 min |
| Jun 12, 9:20 PM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 100 min |
| Jun 12, 10:10 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 60 min |
| Jun 12, 10:20 PM CDT | Severe Thunderstorm Warning | EWX | Bandera | 65 min |
| Jun 12, 11:01 PM CDT | Flash Flood Warning | EWX | Bandera, Kerr | 2 hr |
| Jun 12, 11:01 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 2 hr |
| Jun 12, 11:35 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Maverick, Uvalde, Zavala | 70 min |
| Jun 12, 11:35 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 70 min |
| Jun 12, 11:51 PM CDT | Severe Thunderstorm Warning | EWX | Real | 64 min |
| Jun 13, 12:39 AM CDT | Flash Flood Warning | EWX | Uvalde, Zavala | 116 min |
| Jun 13, 1:00 AM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina | 75 min |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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.