Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 1, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 19, 1997, 9:51 PM CST for Val Verde County, Texas. It was in force for 69 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
- Feb 19, 1997, 9:51 PM CST (03:51 UTC)
- Expired
- Feb 19, 1997, 11:00 PM CST
- In force
- 69 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde County, TX
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 19, 9:45 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 3.9 hours before the alert went out and 66 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
- 810 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 917 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
631 WUUS1 KSAT 200352 RRA SVRSAT TXC465-200500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 951 PM CST WED FEB 19 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...EASTERN VAL VERDE COUNTY AT 950 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF DEL RIO. MOVEMENT WAS EAST NORTHEAST AT 30 MPH. THIS WILL TAKE THE STORM ACROSS LAKE AMISTAD. ALTHOUGH NO TORNADOES HAVE BEEN DETECTED WITH THIS STORM...A TORNADO WATCH REMAINS IN EFFECT. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.
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, Feb 19, 5:29 PM CST, 4 hours 22 minutes before
TXZ171>173-183>194-202>209-217>225-228-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CST WED FEB 19 1997 A WEATHER SYSTEM TO THE WEST OF SOUTH TEXAS WILL CONTINUE MOVING EAST...BRINGING A GOOD CHANCE FOR SHOWERS AND THUNDERSTORMS TO ALL OF SOUTH CENTRAL TEXAS. SOME OF THE SHOWERS AND THUNDERSTORMS COULD INCREASE IN STRENGTH ENOUGH TO BECOME SEVERE. LOCALLY HEAVY RAIN IS ALSO POSSIBLE WITH THIS MID TO LATE FEBRUARY OF 1997 WEATHER SYSTEM. RAINFALL AMOUNTS THROUGH THURSDAY MORNING ARE EXPECTED TO AVERAGE NEAR ONE INCH OVER THE EDWARDS PLATEAU...NEAR ONE TO TWO INCHES OVER THE HILL COUNTRY AND IN THE VICINITY OF THE BALCONES ESCARPMENT. ISOLATED HIGHER TOTALS OF THREE TO FOUR INCHES ARE POSSIBLE. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECASTS...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDfATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOUS WEATHER NO LONGER IS EXPECTED.
Special weather statement, Feb 19, 5:30 PM CST, 4 hours 21 minutes before
TXZ171>173-183>194-202>209-217>225-228-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CST WED FEB 19 1997 A WEATHER SYSTEM TO THE WEST OF SOUTH TEXAS WILL CONTINUE MOVING EAST...BRINGING A GOOD CHANCE FOR SHOWERS AND THUNDERSTORMS TO ALL OF SOUTH CENTRAL TEXAS. SOME OF THE SHOWERS AND THUNDERSTORMS COULD INCREASE IN STRENGTH ENOUGH TO BECOME SEVERE. LOCALLY HEAVY RAIN IS ALSO POSSIBLE WITH THIS MID TO LATE FEBRUARY OF 1997 WEATHER SYSTEM. RAINFALL AMOUNTS THROUGH THURSDAY MORNING ARE EXPECTED TO AVERAGE NEAR ONE INCH OVER THE EDWARDS PLATEAU...NEAR ONE TO TWO INCHES OVER THE HILL COUNTRY AND IN THE VICINITY OF THE BALCONES ESCARPMENT. ISOLATED HIGHER TOTALS OF THREE TO FOUR INCHES ARE POSSIBLE. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECASTS...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOUS WEATHER NO LONGER IS EXPECTED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 9:10 PM CST | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Feb 19, 11:46 PM CST | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Feb 20, 3:07 AM CST | Flash Flood Warning | EWX | Gillespie | 4 hr |
| Feb 20, 3:49 AM CST | Flash Flood Warning | EWX | Val Verde | 116 min |
| Feb 20, 7:07 AM CST | Flash Flood Warning | EWX | Gillespie | 3 hr |
| Feb 20, 7:22 AM CST | Flash Flood Warning | EWX | Real | 3 hr |
| Feb 20, 8:51 AM CST | Flash Flood Warning | EWX | Kerr | 4 hr |
| Feb 20, 9:53 AM CST | Flash Flood Warning | EWX | Gillespie, Llano | 4 hr |
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; the sounding from the Mesonet's radiosonde archive.