Alert archive / Texas / Tornado Watches in 2005

Tornado Watch 273

May 13, 200522 counties in Texas

The Storm Prediction Center issued this tornado watch at May 13, 2005, 6:25 PM CDT for 22 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 13, 2005, 6:25 PM CDT (23:25 UTC)
Expired
May 14, 2005, 1:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 22 counties

Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Irion County, TX, Jack County, TX, Jones County, TX, McCulloch County, TX, Nolan County, TX, Palo Pinto County, TX, Runnels County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX

The radar

The San Angelo radar (KSJT), 85 km from the middle of the area, began a volume at 23:27 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.

Warnings issued inside it

26 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 13, 7:26 PM CDTTornado WarningSJTHaskell34 min
May 13, 7:54 PM CDTTornado WarningSJTHaskell, Throckmorton36 min
May 13, 7:57 PM CDTTornado WarningSJTHaskell, Throckmorton33 min
May 13, 8:31 PM CDTSevere Thunderstorm WarningSJTHaskell, Throckmorton29 min
May 13, 8:50 PM CDTSevere Thunderstorm WarningFWDYoung55 min
May 13, 8:58 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones, Shackelford, Throckmorton47 min
May 13, 9:19 PM CDTSevere Thunderstorm WarningFWDStephens56 min
May 13, 9:40 PM CDTSevere Thunderstorm WarningFWDYoung35 min
May 13, 9:45 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones30 min
May 13, 10:00 PM CDTSevere Thunderstorm WarningSJTHaskell, Shackelford, Throckmorton30 min
May 13, 10:15 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones30 min
May 13, 10:16 PM CDTSevere Thunderstorm WarningFWDPalo Pinto, Stephens, Young59 min
May 13, 10:23 PM CDTSevere Thunderstorm WarningSJTNolan, Taylor37 min
May 13, 10:29 PM CDTSevere Thunderstorm WarningSJTShackelford31 min
May 13, 10:44 PM CDTSevere Thunderstorm WarningSJTJones, Shackelford31 min
May 13, 10:57 PM CDTFlash Flood WarningSJTJones3 hr
May 13, 10:57 PM CDTTornado WarningSJTNolan, Taylor33 min
May 13, 11:10 PM CDTFlash Flood WarningSJTNolan, Taylor2 hr
May 13, 11:15 PM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Shackelford45 min
May 13, 11:23 PM CDTSevere Thunderstorm WarningSJTRunnels37 min
May 13, 11:29 PM CDTTornado WarningSJTCoke, Nolan, Runnels, Taylor46 min
May 13, 11:51 PM CDTSevere Thunderstorm WarningSJTNolan, Taylor24 min
May 14, 12:16 AM CDTSevere Thunderstorm WarningSJTNolan, Taylor29 min
May 14, 12:24 AM CDTSevere Thunderstorm WarningSJTTaylor36 min
May 14, 12:26 AM CDTSevere Thunderstorm WarningSJTBrown34 min
May 14, 12:47 AM CDTTornado WarningSJTRunnels, Taylor28 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.4 hours before the alert went out and 209 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.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2005-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 82 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2005-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
82 J/kg
Mixed-layer CIN
-366 J/kg
Mixed-layer LCL
2000 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
207 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 132321
SEL3  
SPC WW 132321
TXZ000-140600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 273
NWS STORM PREDICTION CENTER NORMAN OK
625 PM CDT FRI MAY 13 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       WEST CENTRAL TEXAS

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 625 PM UNTIL
100 AM CDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 75 MILES NORTH NORTHEAST OF ABILENE
TEXAS TO 30 MILES SOUTHEAST OF SAN ANGELO TEXAS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 267...WW 268...WW 269...WW
270...WW 271...WW 272...

DISCUSSION...VERY UNSTABLE AIR COUPLED WITH STEEP LAPSE RATES AND
VEERING WIND PROFILE SUPPORT DEVELOPMENT OF TORNADIC SUPERCELLS
INCLUDING VERY LARGE HAIL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 28020.


...HALES

332,0975 310,0985 310,1011 332,1002

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 7:56 PM CDTMesoscale DiscussionSPCBriscoe, Castro, Childress, Collingsworth, Cottle, Crosby and 12 more64 min
May 12, 8:40 PM CDTTornado WatchSPCBriscoe, Childress, Cottle, Crosby, Dickens, Floyd and 6 more5 hr
May 12, 9:35 PM CDTMesoscale DiscussionSPCArmstrong, Carson, Collingsworth, Donley, Gray, Hemphill and 4 more85 min
May 12, 10:48 PM CDTMesoscale DiscussionSPCWichita57 min
May 13, 1:12 AM CDTMesoscale DiscussionSPCChildress, Cottle, Crosby, Floyd, Hale, Hall and 2 more63 min
May 13, 1:30 AM CDTSevere Thunderstorm WatchSPCBaylor, Cottle, Crosby, Dickens, Floyd, Foard and 8 more5 hr
May 13, 1:52 PM CDTMesoscale DiscussionSPCBriscoe, Childress, Collingsworth, Cottle, Dickens, Donley and 9 more83 min
May 13, 2:10 PM CDTTornado WatchSPCArcher, Baylor, Childress, Clay, Collingsworth, Cottle and 19 more7 hr
May 13, 2:13 PM CDTMesoscale DiscussionSPCBrewster, Crockett, Irion, Terrell2 hr
May 13, 5:56 PM CDTMesoscale DiscussionSPCArcher, Baylor, Childress, Clay, Collingsworth, Cottle and 20 more64 min
May 13, 6:08 PM CDTMesoscale DiscussionSPCCoke, Crane, Fisher, Glasscock, Howard, Irion and 11 more67 min
May 13, 6:45 PM CDTTornado WatchSPCArcher, Baylor, Clay, Foard, Hardeman, King and 4 more7 hr

Nearby

Tornado Watches in Texas, 2005Every tornado watch in 2005

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.