Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 67, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 6, 2001, 8:08 PM CDT for Dimmit County, Zavala County, Texas. It was in force for 52 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
- May 6, 2001, 8:08 PM CDT (01:08 UTC)
- Expired
- May 6, 2001, 9:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Dimmit County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 86 km from the middle of the area, began a volume at 01:10 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 6, 6:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 1.1 hours before the alert went out and 133 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
- 2710 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1349 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 070109 SVRSAT TXC127-507-070200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 808 PM CDT SUN MAY 6 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... DIMMIT ZAVALA * UNTIL 900 PM CDT * AT 805 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED CLUSTERS OF STRONG THUNDERSTORMS OVER DIMMIT AND ZAVALA RNEAR ASHERTON...CARRIZO SPRINGS...CRYSTAL CITY...AND BATESVILLE...MOVING NORTHEAST AT 20 MPH. VERY LARGE HAIL HAVE BEEN REPORTED WITH THESE SEVERE THUNDERSTORM.
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 May 6, 3:15 PM CDT, 4 hours 53 minutes earlier.
Area forecast discussion, May 6, 3:15 PM CDT, 4 hours 53 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 315 PM CDT SUN MAY 6 2001 ISOLD TRW POPPING WEST OF THE RIVER OVR THE MOUNTAIN OF MEX AND NORTH OF THE HILL COUNTRY NEAR THE DRY LINE. CAPES ACRS THE CWA ARE IN THE 2500-4000 RANGE WITH LITTLE OR NO CAP...AND WITH SFC BASED LIS NEARING DOUBLE DIGITS. AMS VERY UNSTABLE AND EXPECT SCT TSTMS TO CONT FIRE NEAR THE DRY LINE/SRN END OF S/W THIS EVENING. WILL GO WITH HIGHEST POPS ACROSS THE HILL COUNTRY INTO THE NRN SECTIONS OF S CENTRAL TEXAS WITH MENTION OF SVR THIS EVENING AND LOWER CHCS OVER THE SE COUNTIES WHERE A FEW MAINLY SEA BREEZE TRW PSBL. EXPECT LOWER POPS MONDAY IN THE WAKE OF THE S/W WITH MAINLY WDLY SCT AFTN/EVENING RW/TRW...THEN A WK COLD FRONT SLIPS S INTO THE CWA MON NIGHT AND EARLY TUE BEFORE QUICKLY RETREATING NEWD OUT OF THE AREA. WILL UP MOS POPS WITH THE CDFNT FOR MON NIGHT...BUT POTENTIAL LOOKS BETTER FOR HVY RAIN THAN SVR DUE TO DEEPER MOISTURE...WK UPR AIR DYNAMICS...AND FRONTAL BOUNDARY. PRELIMINARY NUMBERS... AUS 069/083/066/081 4353 DRT 068/090/068/087 3232 SAT 071/085/067/083 3243 .EWX...NONE. 1/13
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:06 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 54 min |
| May 6, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Travis, Williamson | 60 min |
| May 6, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio, Medina | 60 min |
| May 6, 9:42 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 63 min |
| May 6, 10:03 PM CDT | Flash Flood Warning | EWX | Bastrop, Hays, Lee, Travis, Williamson | 3 hr |
| May 6, 11:31 PM CDT | Flash Flood Warning | EWX | Fayette | 3 hr |
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.