Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 60, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 6, 2012, 3:26 AM CDT for Bexar County, Comal County, Texas. It was in force for 34 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 6, 2012, 3:26 AM CDT (08:26 UTC)
- Expired
- May 6, 2012, 4:00 AM CDT
- In force
- 34 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Bexar County, TX, Comal County, TX
The radar
The Austin/San Antonio radar (KEWX), 40 km from the middle of the area, began a volume at 08:28 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 nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 8.4 hours before the alert went out and 241 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
- 3568 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1651 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
308 WUUS54 KEWX 060826 SVREWX TXC029-091-060900- /O.NEW.KEWX.SV.W.0060.120506T0826Z-120506T0900Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 326 AM CDT SUN MAY 6 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME NORTH CENTRAL BEXAR COUNTY... WEST CENTRAL COMAL COUNTY... * UNTIL 400 AM CDT. * AT 323 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SPRING BRANCH...OR 15 MILES WEST OF CANYON LAKE DAM...AND MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF THE INDICATED COUNTY. 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 2993 9832 2974 9836 2977 9860 2991 9844 TIME...MOT...LOC 0826Z 264DEG 27KT 2982 9842 $$
2 follow-up statements
912 WWUS54 KEWX 060836 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 336 AM CDT SUN MAY 6 2012 TXC029-091-060900- /O.CON.KEWX.SV.W.0060.000000T0000Z-120506T0900Z/ BEXAR TX-COMAL TX- 336 AM CDT SUN MAY 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR WEST CENTRAL COMAL AND EXTREME NORTH CENTRAL BEXAR COUNTIES... AT 330 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ANHALT...OR 16 MILES WEST OF CANYON LAKE DAM...MOVING EAST AT 30 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 2993 9832 2974 9836 2977 9860 2991 9844 TIME...MOT...LOC 0836Z 267DEG 26KT 2979 9839 $$
225 WWUS54 KEWX 060900 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 400 AM CDT SUN MAY 6 2012 TXC029-091-060909- /O.EXP.KEWX.SV.W.0060.000000T0000Z-120506T0900Z/ BEXAR TX-COMAL TX- 400 AM CDT SUN MAY 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL COMAL AND EXTREME NORTH CENTRAL BEXAR COUNTIES WILL EXPIRE AT 400 AM CDT... THE SEVERE THUNDERSTORM HAS WEAKENED AND MOVED EAST. THE WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 2993 9832 2974 9836 2977 9860 2991 9844 TIME...MOT...LOC 0859Z 267DEG 26KT 2980 9820 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 8:33 PM CDT | River Flood Warning | EWX | Val Verde | 19 days |
| May 6, 12:55 AM CDT | Areal Flood Advisory | EWX | Travis, Williamson | 2 hr |
| May 6, 4:11 AM CDT | Areal Flood Advisory | EWX | Bexar | 3 hr |
| May 6, 6:12 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 63 min |
| May 6, 6:54 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 51 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.