Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 42, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 18, 1997, 6:36 PM CDT for Val Verde County, Texas. It was in force for 114 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 18, 1997, 6:36 PM CDT (23:36 UTC)
- Expired
- Apr 18, 1997, 8:30 PM CDT
- In force
- 114 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 109 km from the middle of the area, began a volume at 23:37 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1184 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 470 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 182334 RRA SVRSAT TXC465-190130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 636 PM CDT FRI APR 18 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...VAL VERDE COUNTY AT 6:35 PM...RADAR INDICATED A SEVERE THUNDERSTORM MOVING ALONG THE RIO GRANDE NEAR LANGTRY. RADAR INDICATES 1 INCH HAIL WITH THIS STORM. THE STORM IS MOVING SOUTHEAST AT 25 MPH AND WILL LIKELY TRACK ALONG THE RIO GRANDE RIVER THROUGH LANGTRY...LAKE AMISTAD...AND DEL RIO. 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 18, 5:35 PM CDT, 1 hour 1 minute before
TXZ171>173-183>194-202>209-217>225-228-191200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT FRI APR 18 1997 HAZARDOUS WEATHER IS NOT EXPECTED TONIGHT OR SATURDAY. SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND SATURDAY. RAINFALL AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH OR LESS WITH ISOLATED AMOUNTS BETWEEN A HALF AN INCH AND AN INCH POSSIBLE. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...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 IS NO LONGER EXPECTED.
Special weather statement, Apr 18, 6:00 PM CDT, 36 minutes before
TXZ171>173-183>194-202>209-217>225-228-191200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT FRI APR 18 1997 HAZARDOUS WEATHER IS NOT EXPECTED TONIGHT OR SATURDAY. SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND SATURDAY. RAINFALL AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH OR LESS WITH ISOLATED AMOUNTS BETWEEN A HALF AN INCH AND AN INCH POSSIBLE. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...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 IS NO LONGER EXPECTED.
Special weather statement, Apr 18, 6:05 PM CDT, 31 minutes before
TXZ183-190100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 605 PM CDT FRI APR 18 1997 A LINE OF THUNDERSTORMS WAS MOVING SOUTHEASTWARD FROM TERRELL COUNTY INTO WESTERN VAL VERDE COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED ALONG U.S. HIGHWAY 90 BETWEEN DRYDEN AND LANGTRY. THE CURRENT PATH OF THIS STORM APPEARS IT WILL TRACK JUST SOUTH OF LANGTRY ALONG THE RIO GRANDE INTO MEXICO. THE NEXRAD DOPPLER RADAR AT BRACKETTVILLE INDICATES THE STORM CONTAINS HAIL AN INCH AND A QUARTER IN DIAMETER. LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING ARE ALSO ASSOCIATED WITH THE STORM. LOW-WATER CROSSINGS AND NORMALLY DRY CREEKS AND ARROYOS MAY BECOME FLOODED IF THE RAINS PERSIST INTO THE EVENING HOURS...MOTORISTS SHOULD BEWARE. RESIDENTS OF VAL VERDE COUNTY...ESPECIALLY THOSE PERSONS IN AND AROUND LANGTRY AND LAKE AMISTAD AND ALONG U.S. HIGHWAY 90...SHOULD BE ALERT TO APPROACHING WEATHER AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER IS NOTED OR A SEVERE WEATHER WARNING IS ISSUED. ADDITIONAL STATEMENTS OR ADVISORIES WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
Special weather statement, Apr 18, 6:16 PM CDT, 20 minutes before
TXZ183-190100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 605 PM CDT FRI APR 18 1997 A LINE OF THUNDERSTORMS WAS MOVING SOUTHEASTWARD FROM TERRELL COUNTY INTO WESTERN VAL VERDE COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED ALONG U.S. HIGHWAY 90 BETWEEN DRYDEN AND LANGTRY. THE CURRENT PATH OF THIS STORM APPEARS IT WILL TRACK JUST SOUTH OF LANGTRY ALONG THE RIO GRANDE INTO MEXICO. THE NEXRAD DOPPLER RADAR AT BRACKETTVILLE INDICATES THE STORM CONTAINS HAIL AN INCH AND A QUARTER IN DIAMETER. LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING ARE ALSO ASSOCIATED WITH THE STORM. LOW-WATER CROSSINGS AND NORMALLY DRY CREEKS AND ARROYOS MAY BECOME FLOODED IF THE RAINS PERSIST INTO THE EVENING HOURS...MOTORISTS SHOULD BEWARE. RESIDENTS OF VAL VERDE COUNTY...ESPECIALLY THOSE PERSONS IN AND AROUND LANGTRY AND LAKE AMISTAD AND ALONG U.S. HIGHWAY 90...SHOULD BE ALERT TO APPROACHING WEATHER AND BE PREPARED TO MOVE 4TO A PLACE OF SAFETY IF SEVERE WEATHER IS NOTED OR A SEVERE WEATHER WARNING IS ISSUED. ADDITIONAL STATEMENTS OR ADVISORIES WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
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; radar from the NEXRAD Level II archive.