Alert archive / Texas / Tornado Warnings in 2011
Tornado Warning 26, NWS San Angelo, TX
NWS San Angelo, TX issued this tornado warning at Jun 20, 2011, 6:09 PM CDT for Throckmorton County, Texas. It was in force for 36 min. 2 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 20, 2011, 6:09 PM CDT (23:09 UTC)
- Expired
- Jun 20, 2011, 6:45 PM CDT
- In force
- 36 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
County Throckmorton County, TX
The radar
The Dyess AFB radar (KDYX), 58 km from the middle of the area, began a volume at 23:09 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 20, 6:20 PM CDT | HAIL 2.5 | 2 N Woodson, TX | RECEIVED A CALL FROM AN IDIVIDUAL 2N OF WOODSON. THEY REPORTED TENNIS BALL SIZE HAIL COVERING THE GROUND. |
| Jun 20, 6:35 PM CDT | FUNNEL CLOUD | Woodson, TX | TRAINED SPOTTER IN THE FIRE DEPT TRACKED THE STORM AND WITNESSED THE FUNNEL DEVELOP AND DISSIPATE SEVERAL TIMES... BUT NEVER TOUCH DOWN. |
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 20, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.2 hours before the alert went out and 162 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
- 1195 J/kg
- Mixed-layer CIN
- -625 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
643
WFUS54 KSJT 202309
TORSJT
TXC447-202345-
/O.NEW.KSJT.TO.W.0026.110620T2309Z-110620T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
609 PM CDT MON JUN 20 2011
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN THROCKMORTON COUNTY IN NORTH CENTRAL TEXAS...
* UNTIL 645 PM CDT
* AT 604 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS 5 MILES WEST OF WOODSON...OR 12 MILES SOUTH OF
THROCKMORTON...MOVING EAST AT 30 MPH.
IN ADDITION TO DANGEROUS TORNADIC WINDS...OTHER HAZARDS INCLUDE...
LARGE DAMAGING HAIL UP TO GOLF BALL SIZE.
DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 MPH.
POTENTIALLY DEADLY LIGHTNING.
* THE TORNADO IS EXPECTED TO BE NEAR...
US-183 NEAR THE THROCKMORTON-STEPHENS COUNTY LINE BY 615 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER FROM THIS STORM NOW! A SEVERE THUNDERSTORM WATCH REMAINS
IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING FOR NORTH CENTRAL TEXAS.
&&
LAT...LON 3297 9895 3296 9895 3296 9917 3306 9920
3312 9895 3311 9894
TIME...MOT...LOC 2309Z 261DEG 24KT 3301 9909
$$1 follow-up statement
500
WWUS54 KSJT 202325
SVSSJT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
625 PM CDT MON JUN 20 2011
TXC447-202345-
/O.CON.KSJT.TO.W.0026.000000T0000Z-110620T2345Z/
THROCKMORTON TX-
625 PM CDT MON JUN 20 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHEASTERN THROCKMORTON COUNTY...
AT 621 PM CDT... THE MOST DANGEROUS PART OF THE STORM WAS LOCATED
NEAR AND JUST NORTH OF WOODSON...OR 15 MILES SOUTHEAST OF
THROCKMORTON...MOVING EAST AT 30 MPH. A TORNADO COULD DEVELOP
QUICKLY FROM THIS STORM.
STORM HAZARDS INCLUDE...
DANGEROUS TORNADIC WINDS.
LARGE DAMAGING HAIL UP TO TENNIS BALL SIZE. HAIL
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.
WITH POSSIBLE STORM IMPACTS...
OVERTURNED VEHICLES...
DAMAGE TO TREES...SOME MAY BE UPROOTED...
DAMAGE TO HOMES...MAY DESTROY MANUFACTURED HOMES...
DENTED VEHICLES...
MODERATE ROOF DAMAGE...
MAY BREAK WINDOWS ON VEHICLES AND HOMES
MAY INJURE PEOPLE...PETS...AND LIVESTOCK LEFT UNPROTECTED...
SIGNIFICANT DAMAGE TO TREE LIMBS...
SOME TREES MAY BE BLOWN DOWN...
SHEDS TOPPLED...
ROOF DAMAGE TO MANUFACTURED HOMES...
EXTENSIVE POWER OUTAGES...
THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN THROCKMORTON COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE IN WOODSON AND SOUTHEASTERN THROCKMORTON COUNTY NEED TO
TAKE COVER IMMEDIATELY. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN
A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A
CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
MONDAY EVENING FOR NORTH CENTRAL TEXAS.
&&
LAT...LON 3296 9895 3296 9909 3308 9910 3312 9895
3311 9894
TIME...MOT...LOC 2323Z 267DEG 26KT 3302 9898
$$The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 10:55 PM CDT | Red Flag Warning | SJT | Brown, Callahan, Coke, Coleman, Concho, Crockett and 13 more | 23 hr |
| Jun 20, 3:10 AM CDT | Lake Wind Advisory | SJT | Brown, Coke, Coleman, Concho, Haskell, Jones and 4 more | 16 hr |
| Jun 20, 5:02 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 28 min |
| Jun 20, 5:06 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 39 min |
| Jun 20, 5:45 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 15 min |
| Jun 20, 5:50 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 40 min |
| Jun 20, 5:59 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 46 min |
Nearby
Tornado Warnings in Texas, 2011Every tornado warning in 2011Tornadoes in 2011
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.