Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 82, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2012, 1:04 PM CDT for Karnes County, Wilson County, Texas. It was in force for 56 min. 5 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 10, 2012, 1:04 PM CDT (18:04 UTC)
- Expired
- May 10, 2012, 2:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Karnes County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 59 km from the middle of the area, began a volume at 18:05 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 10, 1:22 PM CDT | TSTM WND DMG | 1 S Stockdale, TX | FIRE CHIEF REPORTED ROOFS DAMAGED...TREES DAMAGED...AND POWERLINES AND POWER POLES BLOWN DOWN JUST SOUTH OF STOCKDALE |
| May 10, 1:25 PM CDT | TSTM WND DMG | 3 W Kosciusko, TX | |
| May 10, 1:25 PM CDT | HAIL 1 | 3 W Kosciusko, TX | |
| May 10, 1:25 PM CDT | HAIL 1.75 | 3 W Kosciusko, TX | |
| May 10, 1:52 PM CDT | TSTM WND DMG | 1 S Stockdale, TX | FIRE CHIEF REPORTED ROOFS DAMAGED...TREES DAMAGED...AND POWERLINES AND POWER POLES BLOWN DOWN JUST SOUTH OF STOCKDALE |
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 10, 11:40 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 6.1 hours before the alert went out and 171 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
- 1593 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 779 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
135 WUUS54 KEWX 101804 SVREWX TXC255-493-101900- /O.NEW.KEWX.SV.W.0082.120510T1804Z-120510T1900Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 104 PM CDT THU MAY 10 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN KARNES COUNTY... EASTERN WILSON COUNTY... * UNTIL 200 PM CDT. * AT 100 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR CESTOHOWA...OR NEAR KOSCIUSKO...AND MOVING NORTHEAST AT 30 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE STOCKDALE...GILLETT AND PANDORA. THIS STORM WILL MOVE NORTHEAST ALONG FM 541 AND CROSS HIGHWAYS 123 AND 119 SOUTH OF STOCKDALE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT THURSDAY EVENING FOR SOUTH CENTRAL TEXAS. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 800 PM CDT THURSDAY EVENING FOR SOUTH CENTRAL TEXAS. && LAT...LON 2937 9789 2914 9765 2895 9801 2909 9813 TIME...MOT...LOC 1803Z 228DEG 28KT 2908 9798 $$
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, 6:12 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 63 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, 1:15 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.