Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 24, 2012, 10:40 PM CST for Val Verde County, Texas. It was in force for 35 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
- Jan 24, 2012, 10:40 PM CST (04:40 UTC)
- Expired
- Jan 24, 2012, 11:15 PM CST
- In force
- 35 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 71 km from the middle of the area, began a volume at 04:40 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 |
|---|---|---|---|
| Jan 24, 10:46 PM CST | HAIL 0.25 | 8 Nnw Del Rio, TX | PEA SIZE HAIL AND WIND GUST OF 30 MPH NEAR LAKE AMISTAD. |
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 (KDRT), launched 00:00Z, 4.7 hours before the alert went out and 17 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
- 619 J/kg
- Mixed-layer CIN
- -174 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
268
WUUS54 KEWX 250440
SVREWX
TXC465-250515-
/O.NEW.KEWX.SV.W.0004.120125T0440Z-120125T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1040 PM CST TUE JAN 24 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN VAL VERDE COUNTY...
* UNTIL 1115 PM CST.
* AT 1030 PM CST...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 NEAR AMISTAD
VILLAGE...OR 6 MILES WEST OF DEL RIO...AND MOVING NORTHEAST AT 35
MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE ROUGH CANYON REC AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST WEDNESDAY MORNING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2961 10099 2945 10075 2932 10092 2938 10104
2943 10107 2945 10108
TIME...MOT...LOC 0440Z 214DEG 29KT 2946 10094
$$1 follow-up statement
064 WWUS54 KEWX 250455 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1055 PM CST TUE JAN 24 2012 TXC465-250515- /O.CON.KEWX.SV.W.0004.000000T0000Z-120125T0515Z/ VAL VERDE TX- 1055 PM CST TUE JAN 24 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR SOUTHERN VAL VERDE COUNTY... AT 1050 PM CST...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER SOUTHERN VAL VERDE COUNTY...OR 10 MILES NORTH OF DEL RIO...MOVING NORTHEAST AT 35 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS. && LAT...LON 2945 10085 2950 10100 2958 10095 2947 10078 TIME...MOT...LOC 0455Z 214DEG 29KT 2956 10086 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 10:38 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 26 min |
| Jan 24, 10:52 PM CST | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 38 min |
| Jan 24, 11:17 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 28 min |
| Jan 24, 11:29 PM CST | Tornado Warning | EWX | Edwards | 16 min |
| Jan 24, 11:41 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 35 min |
| Jan 24, 11:44 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 32 min |
| Jan 25, 12:20 AM CST | Severe Thunderstorm Warning | EWX | Edwards, Real | 40 min |
| Jan 25, 1:17 AM CST | Areal Flood Advisory | EWX | Bexar | 103 min |
| Jan 25, 1:33 AM CST | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe, Hays | 42 min |
| Jan 25, 2:00 AM CST | Flash Flood Warning | EWX | Bexar | 6 hr |
| Jan 25, 2:06 AM CST | Areal Flood Advisory | EWX | Caldwell, Comal, Guadalupe, Hays | 114 min |
| Jan 25, 2:15 AM CST | Areal Flood Advisory | EWX | Hays, Travis | 105 min |
| Jan 25, 2:47 AM CST | Flash Flood Warning | EWX | Travis | 3 hr |
| Jan 25, 3:33 AM CST | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Hays, Travis | 42 min |
| Jan 25, 4:06 AM CST | Areal Flood Advisory | EWX | Bexar, Blanco, Comal, Hays, Kendall | 114 min |
| Jan 25, 4:09 AM CST | Areal Flood Advisory | EWX | Bastrop, Caldwell | 111 min |
| Jan 25, 4:26 AM CST | Flash Flood Warning | EWX | Bastrop | 3 hr |
| Jan 25, 4:26 AM CST | Flash Flood Warning | EWX | Travis, Williamson | 3 hr |
| Jan 25, 4:54 AM CST | Areal Flood Advisory | EWX | Comal, Guadalupe, Hays | 2 hr |
| Jan 25, 5:18 AM CST | Flash Flood Warning | EWX | Bastrop, Caldwell, Hays, Travis | 3 hr |
| Jan 25, 5:49 AM CST | Areal Flood Advisory | EWX | Guadalupe | 101 min |
| Jan 25, 5:54 AM CST | Areal Flood Advisory | EWX | Bastrop, Caldwell | 2 hr |
| Jan 25, 6:07 AM CST | Flash Flood Warning | EWX | Lee | 3 hr |
| Jan 25, 6:23 AM CST | Severe Thunderstorm Warning | EWX | Lee | 52 min |
| Jan 25, 6:26 AM CST | River Flood Warning | EWX | Travis | 14 hr |
| Jan 25, 6:39 AM CST | River Flood Warning | EWX | Bexar | 14 hr |
| Jan 25, 6:46 AM CST | Flash Flood Warning | EWX | Bastrop | 3 hr |
| Jan 25, 6:56 AM CST | River Flood Warning | EWX | Bexar, Wilson | 32 hr |
| Jan 25, 7:04 AM CST | Flash Flood Warning | EWX | Fayette | 3 hr |
| Jan 25, 9:05 AM CST | River Flood Warning | EWX | Caldwell, Gonzales | 34 hr |
| Jan 25, 9:05 AM CST | River Flood Warning | EWX | Gonzales | 60 hr |
| Jan 25, 9:27 AM CST | Flash Flood Warning | EWX | Bastrop | 2 hr |
| Jan 25, 5:49 PM CST | Areal Flood Advisory | EWX | Bastrop | 101 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.