Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 914

May 14, 200811 counties in Oklahoma; 32 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 14, 2008, 12:50 AM CDT for 11 counties in Oklahoma; 32 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 14, 2008, 12:50 AM CDT (05:50 UTC)
Expired
May 14, 2008, 2:15 AM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 43 counties

Carter County, OK, Comanche County, OK, Cotton County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Love County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Armstrong County, TX, Baylor County, TX, Briscoe County, TX, Childress County, TX, Clay County, TX, Collingsworth County, TX, Cooke County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Grayson County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Kent County, TX, King County, TX, Knox County, TX, Lubbock County, TX, Montague County, TX, Motley County, TX, Potter County, TX, Randall County, TX, Stonewall County, TX, Swisher County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 114 km from the middle of the area, began a volume at 05:49 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

Norman, OK (KOUN), launched 00:00Z, 5.8 hours before the alert went out and 286 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, Norman, OK at 00:00Z on 2008-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1108 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, Norman, OK at 00:00Z on 2008-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
1108 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
247 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.1

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 8:05 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Coal, Garvin, Hughes and 13 more85 min
May 13, 10:38 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, Muskogee, Pittsburg and 1 more97 min
May 14, 6:40 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Carter, Cleveland, Comanche, Cotton and 12 more95 min
May 13, 7:11 PM CDTMesoscale DiscussionSPCPanola2 hr
May 13, 8:29 PM CDTMesoscale DiscussionSPCBandera, Blanco, Burnet, Comal, Concho, Edwards and 15 more91 min
May 13, 8:53 PM CDTSevere Thunderstorm WatchSPCAnderson, Bell, Bosque, Brown, Callahan, Coke and 56 more7 hr
May 13, 9:54 PM CDTSevere Thunderstorm WatchSPCBastrop, Brazos, Burleson, Caldwell, Comal, Fayette and 5 more6 hr
May 13, 11:41 PM CDTMesoscale DiscussionSPCBastrop, Bell, Blanco, Bosque, Brazos, Burleson and 18 more94 min
May 14, 1:19 AM CDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 19 more56 min
May 14, 1:40 AM CDTTornado WatchSPCAtascosa, Bandera, Bexar, Comal, Dimmit, Edwards and 12 more6 hr
May 14, 2:28 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Bell, Bosque, Brown, Burnet and 58 more92 min
May 14, 2:59 AM CDTMesoscale DiscussionSPCAustin, Bastrop, Bell, Blanco, Brazos, Burleson and 26 more91 min
May 14, 3:39 AM CDTSevere Thunderstorm WatchSPCAustin, Bastrop, Bell, Blanco, Brazos, Burleson and 25 more6 hr
May 14, 5:13 AM CDTMesoscale DiscussionSPCAustin, Bastrop, Bell, Blanco, Brazos, Burleson and 29 more92 min
May 14, 5:38 AM CDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Edwards, Frio, Kerr and 7 more97 min
May 14, 6:42 AM CDTMesoscale DiscussionSPCAustin, Bastrop, Bell, Blanco, Brazos, Burleson and 30 more63 min
May 14, 7:31 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bastrop, Bell, Brazos and 34 more119 min
May 14, 7:50 AM CDTTornado WatchSPCAnderson, Angelina, Austin, Brazos, Burleson, Cherokee and 28 more7 hr
May 14, 10:23 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bastrop, Bell, Brazos and 34 more97 min
May 14, 12:12 PM CDTMesoscale DiscussionSPCAndrews, Dawson, Gaines, Terry, Yoakum93 min
May 14, 12:47 PM CDTTornado WatchSPCAndrews, Borden, Cochran, Coke, Crane, Dawson and 22 more6 hr
May 14, 3:33 PM CDTMesoscale DiscussionSPCCrockett, Edwards, Kerr, Kimble, Kinney, Menard and 5 more27 min
May 14, 3:50 PM CDTTornado WatchSPCBandera, Blanco, Brown, Burnet, Callahan, Coleman and 37 more7 hr
May 14, 3:58 PM CDTMesoscale DiscussionSPCAnderson, Bastrop, Bell, Brazos, Burleson, Falls and 9 more92 min
May 14, 5:12 PM CDTMesoscale DiscussionSPCOrange63 min
May 14, 6:08 PM CDTMesoscale DiscussionSPCAndrews, Borden, Cochran, Coke, Crane, Crosby and 27 more67 min

Nearby

Mesoscale Discussions in Texas, 2008Mesoscale Discussions in Oklahoma, 2008Every mesoscale discussion in 2008

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.