Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 126, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 5, 2001, 5:30 PM CDT for Val Verde County, Texas. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Oct 5, 2001, 5:30 PM CDT (22:30 UTC)
- Expired
- Oct 5, 2001, 6:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 129 km from the middle of the area, began a volume at 22:29 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, 10.5 hours before the alert went out and 83 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
- 1228 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
397 WUUS54 KEWX 052230 SVRSAT TXC465-052300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CDT FRI OCT 5 2001 THE NATIONAL WEATHER SERVICE HAS EXTENDED THE WARNING FOR VAL VERDE COUNTY. * SEVERE THUNDERSTORM WARNING HAS BEEN EXTENDED FOR THE FOLLOWING COUNTIES IN TEXAS... VAL VERDE * UNTIL 600 PM CDT * AT 530 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF LOMA ALTA...MOVING SOUTHEAST AT 20 MPH. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. THIS IS A DANGEROUS STORM. LAT...LON 3027 10174 2980 10177 2926 10078 3029 10070
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 5, 3:30 PM CDT, 2 hours earlier.
Area forecast discussion, Oct 5, 3:30 PM CDT, 2 hours before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 330 PM CDT FRI OCT 5 2001 THREE AREAS OF CONCERN TODAY. THE GULF MOISTURE ALONG THE EASTERN PORTION OF THE CWA...TROPICAL MOISTURE MOVING OVER THE CENTRAL TO SOUTHWESTERN COUNTIES AND THE COLD FRONT ON THE NORTH EDGE OF THE HILL COUNTRY. THE COLD FRONT HAS SLOWED ITS SOUTHERLY PROGRESSION AND MAY CONFORM TO THE TIMING OF THE ETA. SOME THUNDERSTORMS WILL POSSIBLY BECOME SEVERE ALONG THE FRONT WHERE DYNAMICS ARE BEST. LOCALLY HEAVY RAINFALL IS POSSIBLE TONIGHT AS THE FRONT MOVES INTO THE DEEPER TROPICAL MOISTURE. RAIN SHOULD TAPPER OFF SATURDAY AFTERNOON...A STRONG PROGRESSION OF COLD AIR BEHIND THE FRONT SHOULD DRY THE LOWER ATMS. PRELIMINARY NUMBERS... AUS 051/063 050/070 8200 DRT 055/069 055/076 6200 SAT 054/066 052/073 8200 .EWX...NONE. 23/03/06
In the hours before
Special weather statement, Oct 5, 3:00 PM CDT, 2 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-052200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 300 PM CDT FRI OCT 5 2001 A STRONG COLD FRONT HAS MOVED TO THE JUST NORTH OF THE HILL COUNTRY EARLY THIS AFTERNOON. THE MOVEMENT HAS DECREASED TO 10 MPH, AND STRONG THUNDERSTORMS ARE DEVELOPING ALONG ITS BOUNDARY. SOME HAIL, DEADLY LIGHTNING AND BRIEF HEAVY DOWNPOURS WILL ACCOMPANY THE THUNDERSTORMS. AFTER SUNSET, THE COLD FRONT WILL MOVE OUT OF THE HILL COUNTRY AND THROUGH SOUTH CENTRAL TEXAS. THE COLD FRONT IS EXPECTED TO REACH THE AUSTIN AREA AROUND 7 PM...AND THE DEL RIO AND SAN ANTONIO AREAS AROUND 9 PM. BEHIND THE COLD FRONT ARE WIDESPREAD RAIN AND ISOLATED THUNDERSTORMS, CLOUDY SKIES, TEMPERATURES NEAR 60 DEGREES, AND GUSTY NORTH WINDS OF 20 TO 30 MPH. RAINFALL AMOUNTS TONIGHT WILL AVERAGE BETWEEN ONE HALF AND ONE INCH WITH ISOLATED TOTALS UP TO 3 INCHES POSSIBLE. THE COLDER AIR AND WINDS WILL CREATE WIND CHILL INDICES 10 DEGREES COLDER THAN THE ACTUAL AIR TEMPERATURE. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR THE LATER STATMENTS OR WARNINGS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 4:21 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 69 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.