Alert archive / Texas / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 140, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 12, 2000, 11:11 PM CDT for Uvalde 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- May 12, 2000, 11:11 PM CDT (04:11 UTC)
- Expired
- May 13, 2000, 12:15 AM CDT
- In force
- 64 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Uvalde County, TX
The radar
The Laughlin AFB radar (KDFX), 45 km from the middle of the area, began a volume at 04:13 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 12, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 4.2 hours before the alert went out and 95 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
- 1539 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 3252 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
153 WUUS54 KEWX 130411 SVRSAT TXC463-130515- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1111 PM CDT FRI MAY 12 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... UVALDE COUNTY * UNTIL 1215 AM CDT * AT 1111 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHEAST OF MONTELL...OR ABOUT 19 MILES NORTHWEST OF UVALDE...MOVING SOUTHEAST AT 25 MPH. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 2959 10009 2917 10006 2919 9950 2962 9955
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 12, 9:40 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, May 12, 9:40 PM CDT, 1 hour 31 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
940 PM CDT FRI MAY 12 2000
SOME UPDATE REQUIRED WHEN THE TORNADO WATCH EXPIRES AT 10 PM. THE
SEVERE THUNDERSTO{RM WATCH CONTINUES IN EFFECT UNTIL 2 AM.
.EWX...NONE.In the hours before
Local storm report, May 12, 10:30 PM CDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1030 PM CDT FRI MAY 12 2000
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
640 PM 8N LLANO TX .88 INCH HAIL
05/12/00 LLANO REPORTED BY OBSERVER
707 PM 4N LLANO TX 1.75 INCH HAIL
05/12/00 LLANO REPORTED BY SHERIFF
815 PM 3S OXFORD TX 1.00 INCH HAIL
05/12/00 LLANO REPORTED BY SPOTTER
817 PM 3N BERTRAM TX .50 IN HAIL
05/12/00 BURNET REPORTED BY SPOTTER
845 PM HARPER TX .50 IN HAIL
05/12/00 GILLESPIE REPORTED BY SPOTTER
847 PM LIBERTY HILL TX 1.75 INCH HAIL
05/12/00 WILLIAMSON REPORTED BY SHERIFF
847 PM 3N LEANDER TX 1.00 INCH HAIL
05/12/00 WILLIAMSON REPORTED BY SPOTTER
930 PM INGRAM HILLS TX 1.75 IN HAIL
05/12/00 KERR REPORTED BY SPOTTER
930 PM INGRAM TX .88 IN HAIL
05/12/00 KERR REPORTED BY OBSERVERThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:13 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 62 min |
| May 12, 7:28 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 62 min |
| May 12, 8:03 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie | 57 min |
| May 12, 8:12 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 63 min |
| May 12, 8:25 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 35 min |
| May 12, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Blanco | 63 min |
| May 12, 8:46 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 59 min |
| May 12, 8:55 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie | 65 min |
| May 12, 9:08 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 67 min |
| May 12, 10:50 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 55 min |
| May 12, 10:50 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 55 min |
| May 13, 12:56 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 64 min |
| May 13, 1:56 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 49 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000
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.