Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 72, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 7, 2012, 9:29 PM CDT for Dimmit County, Texas. It was in force for 46 min. 1 report 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, 9:29 PM CDT (02:29 UTC)
- Expired
- May 7, 2012, 10:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Dimmit County, TX
The radar
The Laughlin AFB radar (KDFX), 102 km from the middle of the area, began a volume at 02:30 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, 9:38 PM CDT | HAIL 1.5 | 3 S Carrizo Springs, TX |
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, 2.5 hours before the alert went out and 147 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.
275
WUUS54 KEWX 080229
SVREWX
TXC127-080315-
/O.NEW.KEWX.SV.W.0072.120508T0229Z-120508T0315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
929 PM CDT MON MAY 7 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN DIMMIT COUNTY...
* UNTIL 1015 PM CDT.
* AT 921 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CARRIZO
SPRINGS...AND MOVING EAST AT 25 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE ASHERTON...BRUNDAGE...BIG
WELLS AND LAS VEGAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2853 9995 2865 9948 2864 9939 2842 9939
2835 9991
TIME...MOT...LOC 0229Z 257DEG 21KT 2846 9982
$$2 follow-up statements
077
WWUS54 KEWX 080253
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
953 PM CDT MON MAY 7 2012
TXC127-080315-
/O.CON.KEWX.SV.W.0072.000000T0000Z-120508T0315Z/
DIMMIT TX-
953 PM CDT MON MAY 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR NORTHEASTERN DIMMIT COUNTY...
AT 947 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTH OF
BRUNDAGE...OR 10 MILES EAST OF CARRIZO SPRINGS...MOVING EAST AT 25
MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE BIG WELLS AND LAS VEGAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2857 9980 2860 9967 2865 9948 2864 9939
2842 9939 2838 9972
TIME...MOT...LOC 0253Z 257DEG 21KT 2849 9966
$$500
WWUS54 KEWX 080314
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1014 PM CDT MON MAY 7 2012
TXC127-080324-
/O.EXP.KEWX.SV.W.0072.000000T0000Z-120508T0315Z/
DIMMIT TX-
1014 PM CDT MON MAY 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DIMMIT COUNTY
WILL EXPIRE AT 1015 PM CDT...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR SOUTH CENTRAL TEXAS.
LAT...LON 2857 9980 2860 9967 2865 9948 2864 9939
2842 9939 2838 9972
TIME...MOT...LOC 0314Z 257DEG 21KT 2852 9952
$$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, 9:04 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 56 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.