Alert archive / Texas / Tornado Warnings in 2009
Tornado Warning 18, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Jun 11, 2009, 8:27 PM CDT for Travis County, Williamson County, Texas. It was in force for 33 min. 13 reports 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
- Jun 11, 2009, 8:27 PM CDT (01:27 UTC)
- Expired
- Jun 11, 2009, 9:00 PM CDT
- In force
- 33 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Travis County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 37 km from the middle of the area, began a volume at 01:27 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 |
|---|---|---|---|
| Jun 11, 8:30 PM CDT | HAIL 0.88 | Round Rock, TX | |
| Jun 11, 8:35 PM CDT | HAIL 1 | Cedar Park, TX | |
| Jun 11, 8:35 PM CDT | HAIL 1.25 | 2 Sw Brushy Creek, TX | |
| Jun 11, 8:36 PM CDT | TORNADO | Jollyville, TX | DEBRIS BEING KICKED UP INTO THE AIR |
| Jun 11, 8:38 PM CDT | TORNADO | 1 Sse Round Rock, TX | NUMEROUS POLICE REPORTS NEAR 1431 I35 |
| Jun 11, 8:40 PM CDT | HAIL 1 | Jollyville, TX | |
| Jun 11, 8:41 PM CDT | HAIL 1 | Cedar Park, TX | FM 1431 4 MILES EAST OF I35 |
| Jun 11, 8:43 PM CDT | HAIL 0.5 | 4 Sw Jollyville, TX | |
| Jun 11, 8:43 PM CDT | HAIL 1.75 | 1 Ese Anderson Mill, TX | HWY 183...ANDERSON MILL |
| Jun 11, 8:45 PM CDT | HAIL 1 | 1 S Brushy Creek, TX | AVERAGE HAIL SIZE WAS .75 WITH LARGEST BEING 1.00 INCH IN DIAMETER. SOME DENTING OF CARS OCCURED AS A RESULT. |
| Jun 11, 8:49 PM CDT | HAIL 0.75 | 3 S Jollyville, TX | |
| Jun 11, 9:07 PM CDT | HAIL 0.88 | 3 E Pflugerville, TX | |
| Jun 11, 9:10 PM CDT | HAIL 1.75 | Pflugerville, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 2:32 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 1.5 hours before the alert went out and 263 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
- 2849 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1048 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS54 KEWX 120127
TOREWX
TXC453-491-120200-
/O.NEW.KEWX.TO.W.0018.090612T0127Z-090612T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
827 PM CDT THU JUN 11 2009
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL TRAVIS COUNTY...
SOUTH CENTRAL WILLIAMSON COUNTY...
* UNTIL 900 PM CDT.
* AT 827 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR CEDAR
PARK...MOVING SOUTHEAST AT 25 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE ANDERSON MILL...ROUND ROCK...
WINDEMERE...HUTTO AND PFLUGERVILLE.
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 THURSDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3054 9749 3039 9753 3031 9772 3050 9790
3064 9778
TIME...MOT...LOC 0127Z 311DEG 23KT 3053 9780
$$4 follow-up statements
000
WWUS54 KEWX 120132
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
832 PM CDT THU JUN 11 2009
TXC453-491-120200-
/O.CON.KEWX.TO.W.0018.000000T0000Z-090612T0200Z/
WILLIAMSON TX-TRAVIS TX-
832 PM CDT THU JUN 11 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
TRAVIS AND SOUTH CENTRAL WILLIAMSON COUNTIES...
AT 820 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A POSSIBLE TORNADO.
THIS TORNADO WAS SIGHTED NEAR HIGHWAY 183 AND ANDERSON MILL...MOVING
SOUTHEAST AT 25 MPH.
THIS STORM CONTINUES TO SHOW WEAK ROTATION AND COULD PRODUCE A
TORNADO AT ANY TIME AS IT APPROACHES JOLLYVILLE AND KINGS VILLAGE.
OTHER LOCATIONS IN THE WARNING AREA INCLUDE ANDERSON MILL...BRUSHY
CREEK...ROUND ROCK...WELLS BRANCH...WINDEMERE...HUTTO AND
PFLUGERVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3054 9749 3039 9753 3031 9772 3050 9790
3064 9778
TIME...MOT...LOC 0130Z 314DEG 22KT 3050 9777
$$000
WWUS54 KEWX 120137
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
837 PM CDT THU JUN 11 2009
TXC453-491-120200-
/O.CON.KEWX.TO.W.0018.000000T0000Z-090612T0200Z/
WILLIAMSON TX-TRAVIS TX-
837 PM CDT THU JUN 11 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
TRAVIS AND SOUTH CENTRAL WILLIAMSON COUNTIES...
AT 835 PM CDT...A STORM SPOTTER REPORTED A TORNADO WITH DEBRIS NEAR
JOLLYVILLE. THIS ROTATION WAS MOVING SOUTHEAST AT 25 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE ROUND ROCK...WELLS
BRANCH...WINDEMERE...HUTTO AND PFLUGERVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3054 9749 3039 9753 3031 9772 3050 9790
3064 9778
TIME...MOT...LOC 0135Z 314DEG 22KT 3048 9775
$$000
WWUS54 KEWX 120142
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
842 PM CDT THU JUN 11 2009
TXC453-491-120200-
/O.CON.KEWX.TO.W.0018.000000T0000Z-090612T0200Z/
WILLIAMSON TX-TRAVIS TX-
842 PM CDT THU JUN 11 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
TRAVIS AND SOUTH CENTRAL WILLIAMSON COUNTIES...
AT 840 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A TORNADO.
THIS TORNADO WAS LOCATED NEAR ROUND ROCK...MOVING SOUTHEAST AT 25
MPH. NUMEROUS REPORTS HAVE BEEN RECEIVED OF A TORNADO TOUCHDOWN JUST
SOUTH OF ROUND ROCK NEAR I-35.
SOME LOCATIONS IN THE WARNING AREA INCLUDE WELLS BRANCH...
WINDEMERE...HUTTO AND PFLUGERVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3054 9749 3039 9753 3031 9772 3050 9790
3064 9778
TIME...MOT...LOC 0141Z 308DEG 20KT 3047 9772
$$000
WWUS54 KEWX 120158
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
858 PM CDT THU JUN 11 2009
TXC453-491-120208-
/O.EXP.KEWX.TO.W.0018.000000T0000Z-090612T0200Z/
WILLIAMSON TX-TRAVIS TX-
858 PM CDT THU JUN 11 2009
...THE TORNADO WARNING FOR CENTRAL TRAVIS AND SOUTH CENTRAL
WILLIAMSON COUNTIES WILL EXPIRE AT 900 PM CDT...
THE STORM OVER THE AUSTIN AREA CONTINUES TO BE SEVERE...BUT LESS
LIKELY TO PRODUCE A TORNADO. THUS THE TORNADO WARNING WILL BE
ALLOWED TO EXPIRE AT 9 PM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTH CENTRAL TEXAS.
LAT...LON 3054 9749 3039 9753 3031 9772 3050 9790
3064 9778
TIME...MOT...LOC 0158Z 308DEG 20KT 3045 9764
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:25 PM CDT | Tornado Warning | EWX | Burnet | 35 min |
| Jun 11, 7:39 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Travis, Williamson | 66 min |
| Jun 11, 7:43 PM CDT | Tornado Warning | EWX | Burnet, Travis, Williamson | 47 min |
| Jun 11, 7:51 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 39 min |
| Jun 11, 8:08 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Hays, Travis, Williamson | 67 min |
| Jun 11, 8:09 PM CDT | Flash Flood Warning | EWX | Burnet, Llano, Williamson | 111 min |
| Jun 11, 9:03 PM CDT | Flash Flood Warning | EWX | Travis, Williamson | 3 hr |
| Jun 11, 9:08 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Travis, Williamson | 67 min |
| Jun 11, 9:36 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Comal, Guadalupe, Hays, Travis | 54 min |
| Jun 11, 9:58 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 51 min |
| Jun 11, 11:03 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 42 min |
Nearby
Tornado Warnings in Texas, 2009Every tornado warning in 2009Tornadoes in 2009
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.