Alert archive / Texas / Tornado Watches in 2009

Tornado Watch 398

June 13, 20095 counties in Oklahoma; 30 counties in Texas

The Storm Prediction Center issued this tornado watch at Jun 13, 2009, 3:15 PM CDT for 5 counties in Oklahoma; 30 counties in Texas. It took effect at Jun 13, 2009, 3:20 PM CDT. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 2009, 3:15 PM CDT (20:15 UTC)
In effect from
Jun 13, 2009, 3:20 PM CDT
Expired
Jun 13, 2009, 11:00 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
4 in
Strongest gust expected
70 kt
All 35 counties

Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Childress County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 140 km from the middle of the area, began a volume at 20:18 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
40%
Ten or more severe hail reports
80%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 13, 3:32 PM CDTTornado WarningLUBFloyd, Motley28 min
Jun 13, 3:40 PM CDTSevere Thunderstorm WarningLUBBriscoe, Floyd, Hall, Motley50 min
Jun 13, 3:55 PM CDTSevere Thunderstorm WarningLUBCrosby, Floyd, Hale, Lubbock35 min
Jun 13, 3:58 PM CDTTornado WarningLUBDickens, Motley32 min
Jun 13, 4:05 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley25 min
Jun 13, 4:17 PM CDTSevere Thunderstorm WarningLUBCrosby, Dickens28 min
Jun 13, 4:24 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall39 min
Jun 13, 4:27 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley63 min
Jun 13, 4:36 PM CDTTornado WarningLUBDickens, King24 min
Jun 13, 4:42 PM CDTSevere Thunderstorm WarningLUBCrosby, Dickens, Motley32 min
Jun 13, 4:57 PM CDTTornado WarningLUBDickens, King22 min
Jun 13, 5:10 PM CDTSevere Thunderstorm WarningSJTFisher, Nolan65 min
Jun 13, 5:17 PM CDTSevere Thunderstorm WarningLUBDickens, Kent28 min
Jun 13, 5:25 PM CDTSevere Thunderstorm WarningLUBDickens, Kent, King, Stonewall65 min
Jun 13, 5:55 PM CDTSevere Thunderstorm WarningLUBKent, Stonewall65 min
Jun 13, 6:17 PM CDTTornado WarningSJTHaskell58 min
Jun 13, 6:24 PM CDTSevere Thunderstorm WarningLUBBriscoe, Floyd, Hale, Swisher51 min
Jun 13, 6:28 PM CDTSevere Thunderstorm WarningLUBKing32 min
Jun 13, 6:34 PM CDTSevere Thunderstorm WarningLUBCrosby, Garza, Lubbock, Lynn32 min
Jun 13, 6:43 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall62 min
Jun 13, 6:44 PM CDTSevere Thunderstorm WarningLUBStonewall16 min
Jun 13, 6:59 PM CDTSevere Thunderstorm WarningLUBStonewall31 min
Jun 13, 7:10 PM CDTTornado WarningSJTHaskell, Jones, Shackelford, Throckmorton29 min
Jun 13, 7:22 PM CDTFlash Flood WarningOUNKnox3 hr
Jun 13, 7:41 PM CDTSevere Thunderstorm WarningOUNBaylor, Foard, Knox, Wilbarger64 min
Jun 13, 7:45 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones60 min
Jun 13, 7:54 PM CDTTornado WarningSJTHaskell, Jones, Shackelford36 min
Jun 13, 8:12 PM CDTSevere Thunderstorm WarningOUNArcher, Baylor, Wichita, Wilbarger63 min
Jun 13, 8:28 PM CDTSevere Thunderstorm WarningSJTThrockmorton62 min
Jun 13, 9:10 PM CDTSevere Thunderstorm WarningOUNArcher, Clay, Wichita65 min
Jun 13, 9:23 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones, Shackelford37 min
Jun 13, 9:40 PM CDTSevere Thunderstorm WarningOUNArcher, Clay35 min
Jun 13, 9:54 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones, Shackelford, Throckmorton66 min
Jun 13, 10:03 PM CDTSevere Thunderstorm WarningOUNBaylor, Knox57 min
Jun 13, 10:18 PM CDTSevere Thunderstorm WarningFWDYoung57 min
Jun 13, 10:22 PM CDTSevere Thunderstorm WarningSJTShackelford, Throckmorton38 min
Jun 13, 10:44 PM CDTSevere Thunderstorm WarningOUNArcher, Clay61 min
Jun 13, 10:59 PM CDTSevere Thunderstorm WarningSJTThrockmorton31 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.3 hours before the alert went out and 221 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, Amarillo Airport, TX at 12:00Z on 2009-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 862 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, Amarillo Airport, TX at 12:00Z on 2009-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.1939587897Sfc1 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
862 J/kg
Mixed-layer CIN
-357 J/kg
Mixed-layer LCL
1462 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 8:54 PM CDTMesoscale DiscussionSPCBryan, Carter, Jefferson, Johnston, Love, Marshall66 min
Jun 12, 10:08 PM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Canadian, Cherokee, Cleveland, Coal and 28 more7 hr
Jun 12, 11:10 PM CDTMesoscale DiscussionSPCMcCurtain65 min
Jun 13, 3:25 AM CDTMesoscale DiscussionSPCAdair, Atoka, Canadian, Cherokee, Cleveland, Coal and 23 more65 min
Jun 13, 7:43 AM CDTMesoscale DiscussionSPCAlfalfa, Woods62 min
Jun 13, 3:19 PM CDTMesoscale DiscussionSPCCimarron, Texas86 min
Jun 13, 4:59 PM CDTTornado WatchSPCBeaver, Beckham, Cimarron, Ellis, Roger Mills, Texas8 hr
Jun 12, 7:13 PM CDTTornado WatchSPCBlanco, Burnet, Gillespie, Llano5 hr
Jun 12, 11:48 PM CDTMesoscale DiscussionSPCBlanco, Burnet, Gillespie, Llano, McCulloch, Mason and 1 more57 min
Jun 13, 2:40 PM CDTMesoscale DiscussionSPCBriscoe, Childress, Cottle, Crosby, Dickens, Floyd and 8 more95 min
Jun 13, 3:45 PM CDTMesoscale DiscussionSPCAndrews, Crane, Ector, Gaines, Glasscock, Martin and 6 more90 min

Nearby

Tornado Watches in Texas, 2009Tornado Watches in Oklahoma, 2009Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.