Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 104, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 9, 2012, 4:49 PM CDT for Edwards County, Texas. It was in force for 41 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
- Aug 9, 2012, 4:49 PM CDT (21:49 UTC)
- Expired
- Aug 9, 2012, 5:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Edwards County, TX
The radar
The Laughlin AFB radar (KDFX), 73 km from the middle of the area, began a volume at 21:51 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 |
|---|---|---|---|
| Aug 9, 4:55 PM CDT | TSTM WND GST 60 | Rocksprings, TX | WIND GUSTS TO 60 MPH WITH PEA SIZE HAIL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Del Rio, TX (KDLF), launched 12:00Z, 9.8 hours before the alert went out and 88 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
- 1199 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1123 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
644 WUUS54 KEWX 092149 SVREWX TXC137-092230- /O.NEW.KEWX.SV.W.0104.120809T2149Z-120809T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 449 PM CDT THU AUG 9 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL EDWARDS COUNTY... * UNTIL 530 PM CDT. * AT 446 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 ROCKSPRINGS...AND MOVING SOUTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL MOVE ACROSS ROCKSPRINGS AND THEN SOUTHWEST ALONG HIGHWAY 377 AND FM 674. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 2974 10007 2993 10050 3013 10026 3007 10006 TIME...MOT...LOC 2149Z 024DEG 8KT 3001 10021 $$
2 follow-up statements
317 WWUS54 KEWX 092208 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 508 PM CDT THU AUG 9 2012 TXC137-092230- /O.CON.KEWX.SV.W.0104.000000T0000Z-120809T2230Z/ EDWARDS TX- 508 PM CDT THU AUG 9 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR CENTRAL EDWARDS COUNTY... AT 505 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ROCKSPRINGS...MOVING SOUTHWEST AT 10 MPH. WIND GUSTS OF 60 MPH AND PEA SIZE HAIL HAVE BEEN REPORTED WITH THIS STORM IN ROCKSPRINGS. THIS STORM WILL MOVE SOUTHWEST ALONG FM 674. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 2974 10007 2993 10050 3013 10026 3007 10006 TIME...MOT...LOC 2206Z 024DEG 8KT 2996 10027 $$
418 WWUS54 KEWX 092229 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 529 PM CDT THU AUG 9 2012 TXC137-092239- /O.EXP.KEWX.SV.W.0104.000000T0000Z-120809T2230Z/ EDWARDS TX- 529 PM CDT THU AUG 9 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL EDWARDS COUNTY WILL EXPIRE AT 530 PM CDT... THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LEVELS AND THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...WIND GUSTS UP TO 40 MPH AND SMALL HAIL CAN STILL BE EXPECTED. LAT...LON 2974 10007 2993 10050 3013 10026 3007 10006 TIME...MOT...LOC 2229Z 024DEG 8KT 2991 10029 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 9:28 AM CDT | River Flood Warning | EWX | Val Verde | 6 days |
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.