Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 4, 1997, 2:40 PM CST for Real County, Texas. It was in force for 65 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 4, 1997, 2:40 PM CST (20:40 UTC)
- Expired
- Apr 4, 1997, 3:45 PM CST
- In force
- 65 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Real County, TX
The radar
The Laughlin AFB radar (KDFX), 76 km from the middle of the area, began a volume at 20:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 4, 3:18 PM CST | Hail 0.75 | Leakey, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 8.7 hours before the alert went out and 111 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
- 1922 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 10.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 042042 RRA SVRSAT TXC385-042145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 240 PM CST FRI APR 4 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...REAL COUNTY AT 240 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE NORTHERN KINNEY/UVALDE COUNTY LINE...MOVING INTO SOUTHERN REAL COUNTY NEAR CAMP WOOD AT 35 MPH. EXPECT DAMAGING WINDS...POSSIBLE LARGE HAIL...AND BRIEF HEAVY RAIN. SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH. THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES... SOMETIMES BUILDINGS. VERY LARGE HAIL CAN INJURE ANYONE CAUGHT OUTSIDE. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY OF LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, Apr 4, 10:49 AM CST, 3 hours 51 minutes before
TXZ171>173-183>194-202>209-217>225-228-051200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 11 AM CST FRI APR 4 1997 ...STORMY EARLY APRIL DAY OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS... AN INTENSE SPRING WEATHER SYSTME TO THE WEST OF THE AREA WILL MOVE EAST CAUSING MORE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS TODAY AND THIS EVENING. ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES IN SOME AREAS IS POSSIBLE BY THE TIME THE EVENT ENDS THIS EVENING. SEVERE THUNDERSTORMS MAY ALSO DEVELOP OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TODAY AND THIS EVENING...CAUSING STRONG WINDS AND POSSIBLE DAMAGING HAIL. AS THE WEATHER SYSTEMS SWEEPS EAST OF THE AREA...A MOSTLY SUNNY DAY IS EXPECTED SATURDAY...FOLLOWED BY A SUNNY TO PARTLY CLOUDY ON SUNDAY.
Special weather statement, Apr 4, 11:00 AM CST, 3 hours 40 minutes before
TXZ171>173-183>194-202>209-217>225-228-051200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 11 AM CST FRI APR 4 1997 ...STORMY EARLY APRIL DAY OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS... AN INTENSE SPRING WEATHER SYSTME TO THE WEST OF THE AREA WILL MOVE EAST CAUSING MORE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS TODAY AND THIS EVENING. ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES IN SOME AREAS IS POSSIBLE BY THE TIME THE EVENT ENDS THIS EVENING. SEVERE THUNDERSTORMS MAY ALSO DEVELOP OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TODAY AND THIS EVENING...CAUSING STRONG WINDS AND POSSIBLE DAMAGING HAIL. AS THE WEATHER SYSTEMS SWEEPS EAST OF THE AREA...A MOSTLY SUNNY DAY IS EXPECTED SATURDAY...FOLLOWED BY A SUNNY TO PARTLY CLOUDY ON SUNDAY.
Special weather statement, Apr 4, 11:47 AM CST, 2 hours 53 minutes before
TXZ171>173-183>194-202>209-217>225-228-051200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1147 AM CST FRI APR 4 1997 ...STORMY EARLY APRIL AFTERNOON OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS... AN INTENSE SPRING WEATHER SYSTEM TO THE WEST OF THE AREA WILL MOVE EAST CAUSING MORE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND THIS EVENING. AT 1147 AM...STORMS ARE RAPIDLY FORMING WEST AND NORTHWEST OF DEL RIO...BEGINNING TO DEVELOP A LINE OF SHOWERS AND THUNDERSTORMS...WHICH WILL MOVE EAST AND AFFECT SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THIS AFTERNOON. A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR VAL VERDE COUNTY TIL 1230 PM. SEVERE THUNDERSTORMS ARE POSSIBLE WITH THIS EARLY APRIL WEATHER SYSTEM...CAUSING DAMAGING WINDS AND HAIL. ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES IN SOME AREAS IS POSSIBLE BY THE TIME THE EVENT ENDS THIS EVENING. AS THE WEATHER SYSTEMS SWEEPS EAST OF THE AREA...A MOSTLY SUNNY DAY IS EXPECTED SATURDAY...FOLLOWED BY A SUNNY TO PARTLY CLOUDY ON SUNDAY.
Special weather statement, Apr 4, 11:51 AM CST, 2 hours 49 minutes before
TXZ171>173-183>194-202>209-217>225-228-051200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1147 AM CST FRI APR 4 1997 ...STORMY EARLY APRIL AFTERNOON OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS... AN INTENSE SPRING WEATHER SYSTEM TO THE WEST OF THE AREA WILL MOVE EAST CAUSING MORE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND THIS EVENING. AT 1147 AM...STORMS ARE RAPIDLY FORMING WEST AND NORTHWEST OF DEL RIO...BEGINNING TO DEVELOP A LINE OF SHOWERS AND THUNDERSTORMS...WHICH WILL MOVE EAST AND AFFECT SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THIS AFTERNOON. A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR VAL VERDE COUNTY TIL 1230 PM. SEVERE THUNDERSTORMS ARE POSSIBLE WITH THIS EARLY APRIL WEATHER SYSTEM...CAUSING DAMAGING WINDS AND HAIL. ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES IN SOME AREAS IS POSSIBLE BY THE TIME THE EVENT ENDS THIS EVENING. AS THE WEATHER SYSTEMS SWEEPS EAS~T OF THE AREA...A MOSTLY SUNNY DAY IS EXPECTED SATURDAY...FOLLOWED BY A SUNNY TO PARTLY CLOUDY ON SUNDAY.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 8:33 PM CST | Flash Flood Warning | EWX | Dimmit | 42 min |
| Apr 3, 8:33 PM CST | Severe Thunderstorm Warning | EWX | Dimmit | 42 min |
| Apr 3, 9:18 PM CST | Severe Thunderstorm Warning | EWX | Medina, Zavala | 57 min |
| Apr 3, 10:36 PM CST | Flash Flood Warning | EWX | Gillespie | 69 min |
| Apr 3, 10:47 PM CST | Flash Flood Warning | EWX | Kerr | 58 min |
| Apr 3, 11:10 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 65 min |
| Apr 3, 11:32 PM CST | Severe Thunderstorm Warning | EWX | Comal | 58 min |
| Apr 3, 11:55 PM CST | Severe Thunderstorm Warning | EWX | Hays | 65 min |
| Apr 4, 12:25 AM CST | Flash Flood Warning | EWX | Williamson | 65 min |
| Apr 4, 12:25 AM CST | Severe Thunderstorm Warning | EWX | Williamson | 65 min |
| Apr 4, 12:43 AM CST | Severe Thunderstorm Warning | EWX | Hays | 62 min |
| Apr 4, 1:17 AM CST | Flash Flood Warning | EWX | DeWitt, Lavaca | 3 hr |
| Apr 4, 1:34 AM CST | Flash Flood Warning | EWX | Travis, Williamson | 116 min |
| Apr 4, 5:36 AM CST | Flash Flood Warning | EWX | Lavaca | 3 hr |
| Apr 4, 6:23 AM CST | Flash Flood Warning | EWX | Travis, Williamson | 3 hr |
| Apr 4, 6:31 AM CST | Flash Flood Warning | EWX | Blanco | 3 hr |
| Apr 4, 6:43 AM CST | Flash Flood Warning | EWX | Kendall | 3 hr |
| Apr 4, 9:24 AM CST | Flash Flood Warning | EWX | Travis, Williamson | 3 hr |
| Apr 4, 10:12 AM CST | Flash Flood Warning | EWX | DeWitt | 2 hr |
| Apr 4, 11:30 AM CST | Severe Thunderstorm Warning | EWX | Val Verde | 60 min |
| Apr 4, 2:34 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 56 min |
| Apr 4, 3:00 PM CST | Flash Flood Warning | EWX | Real | 2 hr |
| Apr 4, 3:25 PM CST | Flash Flood Warning | EWX | Bandera | 65 min |
| Apr 4, 3:25 PM CST | Severe Thunderstorm Warning | EWX | Bandera | 65 min |
| Apr 4, 3:32 PM CST | Flash Flood Warning | EWX | Uvalde | 58 min |
| Apr 4, 3:32 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 58 min |
| Apr 4, 3:53 PM CST | Flash Flood Warning | EWX | Kerr | 2 hr |
| Apr 4, 4:24 PM CST | Flash Flood Warning | EWX | Bandera | 2 hr |
| Apr 4, 4:34 PM CST | Severe Thunderstorm Warning | EWX | Medina | 56 min |
| Apr 4, 5:11 PM CST | Severe Thunderstorm Warning | EWX | Bexar, Kendall | 79 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.