Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 71, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 7, 2012, 9:04 PM CDT for Dimmit County, Frio County, Zavala County, Texas. It was in force for 56 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 7, 2012, 9:04 PM CDT (02:04 UTC)
- Expired
- May 7, 2012, 10:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Dimmit County, TX, Frio County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 105 km from the middle of the area, began a volume at 02:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 9:17 PM CDT | FUNNEL CLOUD | 3 Nnw Big Wells, TX | FUNNEL CLOUD SIGHTED NORTH OF BIG WELL. |
| May 7, 9:18 PM CDT | HAIL 1 | 2 N Big Wells, TX | QUARTER SIZE HAIL |
| May 7, 9:25 PM CDT | HAIL 1.5 | 1 E Big Wells, TX | PING BALL SIZE REPORTED JUST EAST OF BIG WELLS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 7, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.1 hours before the alert went out and 155 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
- 1281 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 2316 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
365
WUUS54 KEWX 080204
SVREWX
TXC127-163-507-080300-
/O.NEW.KEWX.SV.W.0071.120508T0204Z-120508T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
904 PM CDT MON MAY 7 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN DIMMIT COUNTY...
SOUTHWESTERN FRIO COUNTY...
SOUTHEASTERN ZAVALA COUNTY...
* UNTIL 1000 PM CDT.
* AT 859 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
BRUNDAGE...OR 8 MILES NORTHWEST OF BIG WELLS...AND MOVING EAST AT
15 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE LOMA VISTA...LAS VEGAS AND
DIVOT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2856 9971 2875 9971 2885 9922 2864 9921
2864 9938 2853 9939
TIME...MOT...LOC 0204Z 270DEG 15KT 2865 9964
$$2 follow-up statements
826
WWUS54 KEWX 080215
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
915 PM CDT MON MAY 7 2012
TXC127-163-507-080300-
/O.CON.KEWX.SV.W.0071.000000T0000Z-120508T0300Z/
DIMMIT TX-FRIO TX-ZAVALA TX-
915 PM CDT MON MAY 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHEASTERN ZAVALA...SOUTHWESTERN FRIO AND NORTHEASTERN DIMMIT
COUNTIES...
AT 908 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BIG WELLS...
MOVING EAST AT 15 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE LAS VEGAS AND DIVOT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2855 9962 2875 9963 2885 9922 2864 9921
2864 9938 2853 9939
TIME...MOT...LOC 0215Z 270DEG 15KT 2860 9952
$$065
WWUS54 KEWX 080300
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1000 PM CDT MON MAY 7 2012
TXC127-163-507-080310-
/O.EXP.KEWX.SV.W.0071.000000T0000Z-120508T0300Z/
DIMMIT TX-FRIO TX-ZAVALA TX-
1000 PM CDT MON MAY 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ZAVALA...
SOUTHWESTERN FRIO AND NORTHEASTERN DIMMIT COUNTIES HAS EXPIRED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
LAT...LON 2855 9962 2875 9963 2885 9922 2864 9921
2864 9938 2853 9939
TIME...MOT...LOC 0300Z 270DEG 15KT 2860 9931
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 7:16 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 44 min |
| May 7, 8:00 PM CDT | Areal Flood Advisory | EWX | Travis, Williamson | 2 hr |
| May 7, 8:30 PM CDT | Severe Thunderstorm Warning | EWX | Zavala | 49 min |
| May 7, 8:47 PM CDT | Tornado Warning | EWX | Zavala | 28 min |
| May 7, 8:57 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bandera, Bexar, Frio, Medina | 48 min |
| May 7, 9:29 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 46 min |
| May 7, 9:29 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bexar, Medina, Wilson | 46 min |
| May 8, 12:56 AM CDT | Areal Flood Advisory | EWX | Lavaca | 2 hr |
| May 8, 1:18 AM CDT | Areal Flood Advisory | EWX | DeWitt | 2 hr |
| May 8, 10:33 AM CDT | Areal Flood Advisory | EWX | Bandera, Medina | 117 min |
| May 8, 11:08 AM CDT | Areal Flood Advisory | EWX | Bexar | 112 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.