Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 73, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 7, 2012, 9:29 PM CDT for 4 counties in Texas. It was in force for 46 min. 2 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, 9:29 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
Counties Atascosa County, TX, Bexar County, TX, Medina County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 64 km from the middle of the area, began a volume at 02:31 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, 9:30 PM CDT | HAIL 1 | 1 Nne Lacoste, TX | ONE INCH SIZE HAIL. |
| May 7, 9:50 PM CDT | HAIL 0.7 | 5 W Lackland Afb, TX | DIME SIZE HAIL. |
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
Corpus Christi, TX (KCRP), launched 00:00Z, 2.5 hours before the alert went out and 217 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
- 1286 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 1023 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
517 WUUS54 KEWX 080229 RRA SVREWX TXC013-029-325-493-080315- /O.NEW.KEWX.SV.W.0073.120508T0229Z-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... NORTHWESTERN ATASCOSA COUNTY... SOUTHWESTERN BEXAR COUNTY... EAST CENTRAL MEDINA COUNTY... EXTREME WEST CENTRAL WILSON COUNTY... * UNTIL 1015 PM CDT. * AT 926 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 6 MILES SOUTHWEST OF LACKLAND AFB...OR 11 MILES EAST OF CASTROVILLE...AND MOVING EAST AT 40 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE LEON VALLEY...SAN ANTONIO... OLMOS PARK...ALAMO HEIGHTS AND TERRELL HILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING FOR SOUTH CENTRAL TEXAS. && LAT...LON 2952 9839 2911 9836 2917 9883 2950 9885 TIME...MOT...LOC 0229Z 272DEG 38KT 2931 9866 $$
2 follow-up statements
359 WWUS54 KEWX 080245 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 945 PM CDT MON MAY 7 2012 TXC013-029-325-493-080315- /O.CON.KEWX.SV.W.0073.000000T0000Z-120508T0315Z/ MEDINA TX-WILSON TX-BEXAR TX-ATASCOSA TX- 945 PM CDT MON MAY 7 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTHWESTERN ATASCOSA...SOUTHWESTERN BEXAR...EXTREME WEST CENTRAL WILSON AND EAST CENTRAL MEDINA COUNTIES... AT 940 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MITCHELL LAKE...OR 11 MILES SOUTH OF SAN ANTONIO...MOVING EAST AT 40 MPH. ONE INCH HAIL WAS REPORTED JUST NORTH OF LACOSTE AT 930 PM. SOME LOCATIONS IN THE WARNING AREA INCLUDE OLMOS PARK...THELMA... ALAMO HEIGHTS...BUENA VISTA...TERRELL HILLS...LOSOYA...BROOKS CITY BASE AND SOUTHTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING FOR SOUTH CENTRAL TEXAS. && LAT...LON 2952 9839 2911 9836 2917 9883 2950 9885 TIME...MOT...LOC 0242Z 273DEG 35KT 2930 9852 $$
769 WWUS54 KEWX 080318 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1018 PM CDT MON MAY 7 2012 TXC013-029-325-493-080329- /O.EXP.KEWX.SV.W.0073.000000T0000Z-120508T0315Z/ MEDINA TX-WILSON TX-BEXAR TX-ATASCOSA TX- 1018 PM CDT MON MAY 7 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ATASCOSA... SOUTHWESTERN BEXAR...EXTREME WEST CENTRAL WILSON AND EAST CENTRAL MEDINA COUNTIES HAS EXPIRED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING FOR SOUTH CENTRAL TEXAS. LAT...LON 2952 9839 2911 9836 2917 9883 2950 9885 TIME...MOT...LOC 0245Z 273DEG 35KT 2930 9849 $$
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 | Dimmit | 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.