Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 78, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 19, 1997, 6:54 PM CDT for Val Verde County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 19, 1997, 6:54 PM CDT (23:54 UTC)
- Expired
- May 19, 1997, 9:00 PM CDT
- In force
- 2 hr
- 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 23:58 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, 11.9 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
- 2184 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 134 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 192354 RRA SVRSAT TXC465-200200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 654 PM CDT MON MAY 19 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...VAL VERDE COUNTY A SEVERE THUNDERSTORMS HAS DEVELOPED SOUTH OF JUNO NEAR THE INTERSECTION OF THE DEVILS RIVER AND HIGHWAY 163. THIS STORM LIKELY CONTAINS LARGE HAIL...VERY HEAVY RAIN...AND POSSIBLE DAMAGING WINDS. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH AND WILL LIKEY PASS NEAR EASTERN AMISTAD LAKE DURING THE NEXT 30 MINUTES TO ONE HOUR. 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. IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.
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, May 19, 5:48 PM CDT, 1 hour 6 minutes before
TXZ171>173-183>194-202>209-217>225-228-201100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT MON MAY 19 1997 ...FLOOD AND FLASH FLOOD WATCH IN EFFECT FOR TONIGHT ACROSS THE HILL COUNTRY AND ADJACENT PORTIONS OF SOUTH CENTRAL TEXAS... THE FLOOD AND FLASH FLOOD WATCH IS GENERALLY ALONG AND NORTH OF A LINE FROM DEL RIO TO HONDO TO FLORESVILLE TO GIDDINGS. THE WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN...DEL RIO AND SAN ANTONIO. CONDITIONS ARE BECOMING HIGHLY FAVORABLE FOR HEAVY RAINFALL AND SEVERE THUNDERSTORMS. A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS. MEANWHILE...A STRONG COLD FRONT AND UPPER LEVEL DISTURBANCE ARE APPROACHING THE AREA. AT 5 PM...THE FRONT WAS LOCATED FROM JUST NORTH OF THE DALLAS/FORT WORTH METROPLEX TO NEAR THE BIG BEND AREA WHILE THE DISTURBANCE WAS OVER WEST TEXAS. THE FRONT AND DISTURBANCE WILL MOVE THROUGH MUCH OF THE AREA TONIGHT AND COMBINE TO GENERATE NUMEROUS TO WIDESPREAD SHOWERS AND THUNDERSTORMS. ALREADY...AN AREA OF SHOWERS AND THUNDERSTORMS IS ENTERING THE EDWARDS PLATEAU AND FAR NORTHERN HILL COUNTRY. THE SHOWERS AND THUNDERSTORMS WILL CONTINUE MOVING SOUTHEAST ACROSS THE HILL COUNTRY THIS EVENING AND INTO SOUTH CENTRAL TEXAS BY MIDNIGHT. IT IS EXPECTED THAT THE FRONT WILL SLOW DOWN AS IT MOVES THROUGH PORTIONS OF SOUTH CENTRAL TEXAS AND COULD EVEN STALL LATE TONIGHT INTO TUESDAY MORNING. THE STORMS WILL BE SLOW MOVING AND WILL AT TIMES MOVE OVER THE SAME AREAS PRODUCING HEAVY RAINFALL. CONDITIONS WILL BE MOST FAVORABLE FOR SEVERE THUNDERSTORMS TONIGHT ACROSS THE HILL COUNTRY AND SOUTHERN EDWARDS PLATEAU. SOME STORMS MAY CONTAIN LARGE HAIL AND/OR DAMAGING WINDS. AVERAGE RAINFALL AMOUNTS IN THE 1 TO 2 INCH RANGE CAN BE EXPECTED WITH ISOLATED AMOUNTS OF 2 TO 4 INCHES OR MORE ARE POSSIBLE WHERE STORMS MERGE OR REDEVELOP ACROSS A PARTICULAR LOCATION. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOU,S WEATHER IS NO LONGER EXPECTED.
Special weather statement, May 19, 6:00 PM CDT, 54 minutes before
TXZ171>173-183>194-202>209-217>225-228-201100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT MON MAY 19 1997 ...FLOOD AND FLASH FLOOD WATCH IN EFFECT FOR TONIGHT ACROSS THE HILL COUNTRY AND ADJACENT PORTIONS OF SOUTH CENTRAL TEXAS... THE FLOOD AND FLASH FLOOD WATCH IS GENERALLY ALONG AND NORTH OF A LINE FROM DEL RIO TO HONDO TO FLORESVILLE TO GIDDINGS. THE WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN...DEL RIO AND SAN ANTONIO. CONDITIONS ARE BECOMING HIGHLY FAVORABLE FOR HEAVY RAINFALL AND SEVERE THUNDERSTORMS. A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS. MEANWHILE...A STRONG COLD FRONT AND UPPER LEVEL DISTURBANCE ARE APPROACHING THE AREA. AT 5 PM...THE FRONT WAS LOCATED FROM JUST NORTH OF THE DALLAS/FORT WORTH METROPLEX TO NEAR THE BIG BEND AREA WHILE THE DISTURBANCE WAS OVER WEST TEXAS. THE FRONT AND DISTURBANCE WILL MOVE THROUGH MUCH OF THE AREA TONIGHT AND COMBINE TO GENERATE NUMEROUS TO WIDESPREAD SHOWERS AND THUNDERSTORMS. ALREADY...AN AREA OF SHOWERS AND THUNDERSTORMS IS ENTERING THE EDWARDS PLATEAU AND FAR NORTHERN HILL COUNTRY. THE SHOWERS AND THUNDERSTORMS WILL CONTINUE MOVING SOUTHEAST ACROSS THE HILL COUNTRY THIS EVENING AND INTO SOUTH CENTRAL TEXAS BY MIDNIGHT. IT IS EXPECTED THAT THE FRONT WILL SLOW DOWN AS IT MOVES THROUGH PORTIONS OF SOUTH CENTRAL TEXAS AND COULD EVEN STALL LATE TONIGHT INTO TUESDAY MORNING. THE STORMS WILL BE SLOW MOVING AND WILL AT TIMES MOVE OVER THE SAME AREAS PRODUCING HEAVY RAINFALL. CONDITIONS WILL BE MOST FAVORABLE FOR SEVERE THUNDERSTORMS TONIGHT ACROSS THE HILL COUNTRY AND SOUTHERN EDWARDS PLATEAU. SOME STORMS MAY CONTAIN LARGE HAIL AND/OR DAMAGING WINDS. AVERAGE RAINFALL AMOUNTS IN THE 1 TO 2 INCH RANGE CAN BE EXPECTED WITH ISOLATED AMOUNTS OF 2 TO 4 INCHES OR MORE ARE POSSIBLE WHERE STORMS MERGE OR REDEVELOP ACROSS A PARTICULAR LOCATION. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...SHORT TERM FORECAST...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.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 4:44 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 2 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; radar from the NEXRAD Level II archive.