Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 48, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 25, 1997, 11:50 PM CDT for Uvalde County, Texas. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1997, 11:50 PM CDT (04:50 UTC)
- Expired
- Apr 26, 1997, 1:45 AM CDT
- In force
- 115 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Uvalde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 4.8 hours before the alert went out and 104 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
- 22 J/kg
- Mixed-layer CIN
- -210 J/kg
- Mixed-layer LCL
- 1669 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 379 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 260452 FFWSAT TXC463-260645- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1150 PM CDT FRI APR 25 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 145 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...UVALDE COUNTY AT 1145 PM...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL 20 MILES SOUTHWEST OF BLEWETT OR 30 MILES SOUTHWEST OF UVALDE. RADAR INDICATED THIS STORM MAY BE PRODUCING GOLF BALL SIZED HAIL. MOVEMENT WAS NORTHEAST AT 40 MPH. NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN WERE DEVELOPING RAPIDLY OVER CENTRAL AND EASTERN PORTIONS OF THE COUNTY. RADAR INDICATED THESE STORMS WOULD REPEAT OVER THE SAME LOCATIONS AND PRODUCE 2 TO 3 INCHES OF RAIN IN ONE HOUR WITH FLOODING LIKELY ON HIGHWAYS 127... 1049... AND 187. FLOODING MAY ALSO OCCUR ALONG THE SABINAL AND FRIO RIVERS. TRAVEL IS NOT ADVISED ALONG THE CONNECTING ROADS OF THESE RIVERS. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY OF LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVTY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 9:56 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Apr 25, 11:04 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 56 min |
| Apr 25, 11:11 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 2 hr |
| Apr 25, 11:50 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 115 min |
| Apr 25, 11:54 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 66 min |
| Apr 26, 12:53 AM CDT | Flash Flood Warning | EWX | Bandera | 2 hr |
| Apr 26, 1:11 AM CDT | Flash Flood Warning | EWX | Dimmit | 2 hr |
| Apr 26, 1:11 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 2 hr |
| Apr 26, 1:25 AM CDT | Flash Flood Warning | EWX | Gillespie, Kerr | 65 min |
| Apr 26, 1:25 AM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Kerr | 65 min |
| Apr 26, 2:55 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 65 min |
| Apr 26, 3:12 AM CDT | Flash Flood Warning | EWX | Bandera | 3 hr |
| Apr 26, 5:03 AM CDT | Flash Flood Warning | EWX | Hays, Travis | 3 hr |
| Apr 26, 5:43 AM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997
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.