Alert archive / Texas / Tornado Warnings in 2012
Tornado Warning 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Mar 19, 2012, 6:03 PM CDT for Llano County, Texas. It was in force for 27 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
- Mar 19, 2012, 6:03 PM CDT (23:03 UTC)
- Expired
- Mar 19, 2012, 6:30 PM CDT
- In force
- 27 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Llano County, TX
The radar
The Ft Hood radar (KGRK), 142 km from the middle of the area, began a volume at 23:05 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 19, 2:39 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.1 hours before the alert went out and 255 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
- 2784 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 284 m²/s²
- 0-3 km storm-relative helicity
- 337 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 18.4
The text
As transmitted, in the capitals the NWS used until 2016.
465
WFUS54 KEWX 192303
TOREWX
TXC299-192330-
/O.NEW.KEWX.TO.W.0004.120319T2303Z-120319T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
603 PM CDT MON MAR 19 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN LLANO COUNTY...
* UNTIL 630 PM CDT.
* AT 601 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR FIELD CREEK...OR
ABOUT 16 MILES NORTHEAST OF MASON...MOVING NORTHEAST AT 50 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE VALLEY SPRING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN A MOBILE HOME OR VEHICLE...GET OUT AND GO TO A STURDY
SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH
OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3091 9875 3079 9896 3080 9897 3091 9897
3093 9896 3093 9876 3092 9875
TIME...MOT...LOC 2303Z 241DEG 41KT 3088 9897
$$1 follow-up statement
738
WWUS54 KEWX 192325 RRA
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
625 PM CDT MON MAR 19 2012
TXC299-192335-
/O.EXP.KEWX.TO.W.0004.000000T0000Z-120319T2330Z/
LLANO TX-
625 PM CDT MON MAR 19 2012
...THE TORNADO WARNING FOR NORTHWESTERN LLANO COUNTY WILL EXPIRE AT
630 PM CDT...
THE SEVERE PORTION OF THE THUNDERSTORM THAT MOVED OVER NORTHWEST
LLANO COUNTY HAS MOVED NORTHEAST INTO SAN SABA COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR SOUTH CENTRAL TEXAS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM CDT TUESDAY MORNING FOR SOUTH CENTRAL TEXAS.
LAT...LON 3091 9875 3079 9896 3080 9897 3091 9897
3093 9896 3093 9876 3092 9875
TIME...MOT...LOC 2325Z 241DEG 41KT 3100 9871
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 2:30 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 45 min |
| Mar 19, 3:06 PM CDT | Tornado Warning | EWX | Edwards, Val Verde | 39 min |
| Mar 19, 4:52 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 53 min |
| Mar 19, 5:18 PM CDT | Tornado Warning | EWX | Edwards | 42 min |
| Mar 19, 5:29 PM CDT | Severe Thunderstorm Warning | EWX | Medina, Uvalde | 49 min |
| Mar 19, 5:50 PM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina, Zavala | 55 min |
| Mar 19, 5:53 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 32 min |
| Mar 19, 6:07 PM CDT | Tornado Warning | EWX | Frio, Medina | 38 min |
| Mar 19, 6:10 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr, Medina, Uvalde | 50 min |
| Mar 19, 6:23 PM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina, Uvalde, Zavala | 67 min |
| Mar 19, 6:33 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr, Real | 57 min |
| Mar 19, 6:45 PM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina | 60 min |
| Mar 19, 6:54 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Kerr | 55 min |
Nearby
Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes 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.