Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 166, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 7, 1997, 8:26 PM CDT for Atascosa County, Texas. It was in force for 64 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
- Aug 7, 1997, 8:26 PM CDT (01:26 UTC)
- Expired
- Aug 7, 1997, 9:30 PM CDT
- In force
- 64 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Atascosa County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 1.4 hours before the alert went out and 174 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
- 3436 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 080128 RRA SVRSAT TXC013-080230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 826 PM CDT THU AUG 7 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...ATASCOSA COUNTY AT 825 PM NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTH CHARLOTTE AND EAST OF HIGHWAY 97. THIS STORM IS SHOWING LITTLE MOVEMENT. HEAVY RAIN...GUSTY WINDS AND HAIL ARE POSSIBLE WITH THIS STORM. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY OF LARGE HAIL AND DAMAGING WIND&S. 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, Aug 7, 5:39 PM CDT, 2 hours 47 minutes before
TXZ171>173-183>194-202>209-217>225-228-081045- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 540 PM CDT THU AUG 7 1997 ...FLASH FLOOD WATCH TONIGHT FOR THE TEXAS HILL COUNTRY AND ADJACENT AREAS OF CENTRAL AND SOUTH CENTRAL TEXAS... HEAVY RAINS ARE EXPECTED ACROSS THE WESTERN AND NORTHERN SECTIONS OF THE HILL COUNTRY THIS EVENING. THIS AREA OF HEAVY RAINS IS EXPECTED TO SPREAD EASTWARD AND SOUTHWARD ACROSS ADJACENT AREAS OF CENTRAL AND SOUTH CENTRAL TEXAS AS THE NIGHT PROGRESSES. WIDESPREAD RAINFALL ACROSS THE AREA SHOULD AVERAGE ONE HALF TO ONE INCH WITH ISOLATED AMOUNTS OF 5 INCHES OR MORE POSSIBLE. THE HEAVY RAINS LIKELY WILL CONTINUE INTO FRIDAY. RIVER AUTHORITIES AND OTHER WATER MANAGEMENT GROUPS SHOULD KEEP ABREAST OF THIS DEVELOPING HEAVY RAIN EPISODE. OTHER EMERGENCY MANAGERS ACROSS CENTRAL AND SOUTH CENTRAL TEXAS SHOULD REMAIN ALERT FOR POSSIBLY FLOODING OVERNIGHT AND INTO FRIDAY. MOTORISTS TRAVELING THROUGHOUT THE AREA SHOULD WATCH FOR HIGH OR RISING WATERS AND SHOULD NOT ATTEMPT TO CROSS FLOODED ROADWAYS. ALTHOUGH THE MAIN THREAT IS HEAVY RAINS AND FLOODING...ISOLATED THUNDERSTORMS COULD BRIEFLY BECOME SEVERE...WITH LARGE HAIL AND DAMAGING WINDS. DANGEROUS LIGHTNING IS LIKELY IN ALL THUNDERSTORMS OVERNIGHT AND FRIDAY. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.
Special weather statement, Aug 7, 5:40 PM CDT, 2 hours 46 minutes before
TXZ171>173-183>194-202>209-217>225-228-081045- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 540 PM CDT THU AUG 7 1997 ...FLASH FLOOD WATCH TONIGHT FOR THE TEXAS HILL COUNTRY AND ADJACENT AREAS OF CENTRAL AND SOUTH CENTRAL TEXAS... HEAVY RAINS ARE EXPECTED ACROSS THE WESTERN AND NORTHERN SECTIONS OF THE HILL COUNTRY THIS EVENING. THIS AREA OF HEAVY RAINS IS EXPECTED TO SPREAD EASTWARD AND SOUTHWARD ACROSS ADJACENT AREAS OF CENTRAL AND SOUTH CENTRAL TEXAS AS THE NIGHT PROGRESSES. WIDESPREAD RAINFALL ACROSS THE AREA SHOULD AVERAGE ONE HALF TO ONE INCH WITH ISOLATED AMOUNTS OF 5 INCHES OR MORE POSSIBLE. THE HEAVY RAINS LIKELY WILL CONTINUE INTO FRIDAY. RIVER AUTHORITIES AND OTHER WATER MANAGEMENT GROUPS SHOULD KEEP ABREAST OF THIS DEVELOPING HEAVY RAIN EPISODE. OTHER EMERGENCY MANAGERS ACROSS CENTRAL AND SOUTH CENTRAL TEXAS SHOULD REMAIN ALERT FOR POSSIBLY FLOODING OVERNIGHT AND INTO FRIDAY. MOTORISTS TRAVELING THROUGHOUT THE AREA SHOULD WATCH FOR HIGH OR RISING WATERS AND SHOULD NOT ATTEMPT TO CROSS FLOODED ROADWAYS. ALTHOUGH THE MAIN THREAT IS HEAVY RAINS AND FLOODING...ISOLATED THUNDERSTORMS COULD BRIEFLY BECOME SEVERE...WITH LARGE HAIL AND DAMAGING WINDS. DANGEROUS LIGHTNING IS LIKELY IN ALL THUNDERSTORMS OVERNIGHT AND FRIDAY. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 9:23 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Wilson | 3 hr |
| Aug 8, 12:10 PM CDT | Flash Flood Warning | EWX | Comal, Kendall | 3 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.