Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 75, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2012, 6:12 AM CDT for Val Verde County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 10, 2012, 6:12 AM CDT (11:12 UTC)
- Expired
- May 10, 2012, 7:15 AM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 104 km from the middle of the area, began a volume at 11:14 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 10, 5:42 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 11.2 hours before the alert went out and 69 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
- 474 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1152 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
585 WUUS54 KEWX 101112 SVREWX TXC465-101215- /O.NEW.KEWX.SV.W.0075.120510T1112Z-120510T1215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 612 AM CDT THU MAY 10 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... VAL VERDE COUNTY... * UNTIL 715 AM CDT. * AT 609 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 14 MILES NORTH OF COMSTOCK TO 6 MILES SOUTHEAST OF COMSTOCK...AND MOVING NORTHEAST AT 30 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE PAFFORD CROSSING...BAKERS CROSSING AND DEVILS RIVER STATE NATURAL AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT THURSDAY AFTERNOON FOR SOUTH CENTRAL TEXAS. && LAT...LON 3028 10095 2983 10070 2957 10110 2992 10127 TIME...MOT...LOC 1112Z 227DEG 27KT 2990 10115 2965 10106 $$
1 follow-up statement
852 WWUS54 KEWX 101141 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 641 AM CDT THU MAY 10 2012 TXC465-101215- /O.CON.KEWX.SV.W.0075.000000T0000Z-120510T1215Z/ VAL VERDE TX- 641 AM CDT THU MAY 10 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR VAL VERDE COUNTY... AT 638 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 13 MILES NORTH OF DEVILS RIVER STATE NATURAL AREA TO DEVILS RIVER STATE NATURAL AREA...MOVING NORTHEAST AT 30 MPH. SOME LOCATIONS IN THE WARNING AREA INCLUDE LOMA ALTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT THURSDAY AFTERNOON FOR SOUTH CENTRAL TEXAS. && LAT...LON 2972 10101 3004 10116 3028 10095 2983 10070 TIME...MOT...LOC 1141Z 227DEG 27KT 3008 10103 2983 10094 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 5:21 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 54 min |
| May 10, 7:19 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 44 min |
| May 10, 9:29 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 61 min |
| May 10, 10:30 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 60 min |
| May 10, 10:33 AM CDT | Areal Flood Advisory | EWX | Frio | 117 min |
| May 10, 11:17 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 58 min |
| May 10, 11:32 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Wilson | 58 min |
| May 10, 12:02 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| May 10, 12:14 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 31 min |
| May 10, 12:20 PM CDT | Areal Flood Advisory | EWX | Atascosa, Frio | 2 hr |
| May 10, 12:40 PM CDT | Areal Flood Advisory | EWX | Bandera, Edwards, Kerr, Kinney, Real, Uvalde | 110 min |
| May 10, 1:04 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 56 min |
| May 10, 1:15 PM CDT | Tornado Warning | EWX | Gonzales, Karnes, Wilson | 45 min |
| May 10, 1:42 PM CDT | Tornado Warning | EWX | Atascosa | 33 min |
| May 10, 1:57 PM CDT | Tornado Warning | EWX | DeWitt, Gonzales, Karnes, Wilson | 33 min |
| May 10, 2:19 PM CDT | Flash Flood Warning | EWX | Atascosa, DeWitt, Gonzales, Karnes, Wilson | 3 hr |
| May 10, 2:24 PM CDT | Severe Thunderstorm Warning | EWX | Karnes | 51 min |
| May 10, 2:42 PM CDT | Tornado Warning | EWX | Karnes | 48 min |
| May 10, 2:49 PM CDT | Flash Flood Warning | EWX | Bandera, Edwards, Kerr, Real, Uvalde | 3 hr |
| May 10, 3:05 PM CDT | Tornado Warning | EWX | Wilson | 40 min |
| May 10, 3:31 PM CDT | Tornado Warning | EWX | Karnes | 29 min |
| May 10, 3:40 PM CDT | River Flood Warning | EWX | Val Verde | 31 hr |
| May 10, 3:45 PM CDT | Areal Flood Advisory | EWX | DeWitt, Fayette, Gonzales, Lavaca | 105 min |
| May 10, 3:57 PM CDT | Tornado Warning | EWX | DeWitt, Karnes, Wilson | 33 min |
| May 10, 4:39 PM CDT | Flash Flood Warning | EWX | Bandera, Gillespie, Kerr | 81 min |
| May 10, 4:52 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Karnes | 29 min |
| May 10, 5:58 PM CDT | Flash Flood Warning | EWX | Bandera, Blanco, Burnet, Edwards, Gillespie, Kendall and 4 more | 3 hr |
| May 10, 5:58 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Uvalde, Zavala | 47 min |
| May 10, 6:11 PM CDT | Areal Flood Advisory | EWX | DeWitt, Fayette, Karnes, Lavaca | 109 min |
| May 10, 6:41 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.