Alert archive / Texas / Tornado Warnings in 2010
Tornado Warning 3, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at May 15, 2010, 6:20 PM CDT for Llano County, Texas. It was in force for 25 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 15, 2010, 6:20 PM CDT (23:20 UTC)
- Expired
- May 15, 2010, 6:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Llano County, TX
The radar
The Austin/San Antonio radar (KEWX), 138 km from the middle of the area, began a volume at 23:23 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 12:00Z, 11.3 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
- 584 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.7
The text
As transmitted, in the capitals the NWS used until 2016.
119
WFUS54 KEWX 152320
TOREWX
TXC299-152345-
/O.NEW.KEWX.TO.W.0003.100515T2320Z-100515T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
620 PM CDT SAT MAY 15 2010
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* TORNADO WARNING FOR...
WEST CENTRAL LLANO COUNTY...
* UNTIL 645 PM CDT.
* AT 619 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CASTELL...OR ABOUT
17 MILES WEST OF LLANO...MOVING EAST AT 20 MPH.
* THE TORNADO WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF THE
INDICATED COUNTY.
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.
&&
LAT...LON 3078 9877 3059 9877 3062 9897 3075 9897
3076 9897
TIME...MOT...LOC 2320Z 272DEG 18KT 3070 9895
$$2 follow-up statements
590
WWUS54 KEWX 152335
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
635 PM CDT SAT MAY 15 2010
TXC299-152345-
/O.CON.KEWX.TO.W.0003.000000T0000Z-100515T2345Z/
LLANO TX-
635 PM CDT SAT MAY 15 2010
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR WEST
CENTRAL LLANO COUNTY...
AT 632 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD WITH A SEVERE
THUNDERSTORM THAT WAS LOCATED NEAR CASTELL...OR 13 MILES WEST OF
LLANO...MOVING EAST AT 25 MPH.
A TORNADO MAY FORM AT ANY TIME.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN A MOBILE HOME OR VEHICLE...GET OUT AND GO TO A STURDY
SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH
OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3078 9877 3059 9877 3062 9897 3075 9897
3076 9897
TIME...MOT...LOC 2335Z 274DEG 22KT 3073 9886
$$867
WWUS54 KEWX 152346
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
646 PM CDT SAT MAY 15 2010
TXC299-152355-
/O.EXP.KEWX.TO.W.0003.000000T0000Z-100515T2345Z/
LLANO TX-
646 PM CDT SAT MAY 15 2010
...THE TORNADO WARNING FOR WEST CENTRAL LLANO COUNTY HAS EXPIRED...
AT 645...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE AS ROTATION
HAS WEAKENED. THIS STORM CONTINUES TO MOVE EAST TOWARD LLANO WITH
QUARTER SIZE HAIL POSSIBLE.
LAT...LON 3078 9877 3059 9877 3062 9897 3075 9897
3076 9897
TIME...MOT...LOC 2335Z 274DEG 22KT 3073 9886
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 9:36 PM CDT | River Flood Warning | EWX | Frio | 3 days |
| May 14, 11:22 PM CDT | River Flood Warning | EWX | Bexar | 3 hr |
| May 15, 12:15 AM CDT | Severe Thunderstorm Warning | EWX | Edwards | 45 min |
| May 15, 1:09 AM CDT | Flash Flood Watch | EWX | Atascosa, Bandera, Bexar, Blanco, Comal, Frio and 10 more | 5 hr |
| May 15, 1:43 AM CDT | Areal Flood Advisory | EWX | Bandera, Bastrop, Bexar, Blanco, Caldwell, Comal and 10 more | 107 min |
| May 15, 1:54 AM CDT | Severe Thunderstorm Warning | EWX | Kinney, Uvalde | 51 min |
| May 15, 2:22 AM CDT | Flash Flood Warning | EWX | Bastrop, Bexar, Caldwell, Comal, Guadalupe, Hays and 1 more | 3 hr |
| May 15, 3:20 AM CDT | Flash Flood Warning | EWX | Bandera, Frio, Medina | 3 hr |
| May 15, 3:30 AM CDT | Flash Flood Warning | EWX | Atascosa, Fayette, Gonzales, Wilson | 3 hr |
| May 15, 4:55 AM CDT | Areal Flood Advisory | EWX | DeWitt, Karnes, Lavaca | 2 hr |
| May 15, 9:48 AM CDT | River Flood Warning | EWX | Bexar | 24 hr |
| May 15, 6:06 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 39 min |
| May 15, 6:43 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 20 min |
Nearby
Tornado Warnings in Texas, 2010Every tornado warning in 2010Tornadoes in 2010
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.