Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 747

May 3, 200614 counties in Oklahoma; 42 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 3, 2006, 7:20 PM CDT for 14 counties in Oklahoma; 42 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 3, 2006, 7:20 PM CDT (00:20 UTC)
Expired
May 3, 2006, 8:45 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 56 counties

Beckham County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Andrews County, TX, Archer County, TX, Bailey County, TX, Baylor County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Clay County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Gaines County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Hockley County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Montague County, TX, Motley County, TX, Scurry County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 99 km from the middle of the area, began a volume at 00:23 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.3 hours before the alert went out and 265 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 00:00Z on 2006-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 909 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 00:00Z on 2006-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
909 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
3038 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

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 3, 9:46 PM CDTMesoscale DiscussionSPCBeckham, Comanche, Cotton, Greer, Harmon, Jackson and 3 more89 min
May 4, 1:26 AM CDTMesoscale DiscussionSPCBlaine, Canadian, Cherokee, Creek, Kingfisher, Lincoln and 12 more94 min
May 4, 4:16 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Coal, Haskell, Hughes, Latimer and 8 more3 hr
May 4, 12:09 PM CDTMesoscale DiscussionSPCMcCurtain2 hr
May 3, 10:07 PM CDTMesoscale DiscussionSPCBandera, Dimmit, Edwards, Frio, Kinney, La Salle and 7 more83 min
May 3, 10:45 PM CDTSevere Thunderstorm WatchSPCBorden, Brown, Callahan, Coke, Coleman, Comanche and 27 more5 hr
May 4, 3:19 AM CDTMesoscale DiscussionSPCBell, Bosque, Brown, Burnet, Callahan, Coke and 33 more56 min
May 4, 1:06 PM CDTSevere Thunderstorm WatchSPCBowie, Cass, Marion6 hr
May 4, 1:52 PM CDTMesoscale DiscussionSPCAndrews, Borden, Callahan, Coke, Coleman, Dawson and 13 more113 min
May 4, 3:22 PM CDTSevere Thunderstorm WatchSPCAndrews, Bastrop, Bell, Blanco, Borden, Bosque and 44 more7 hr
May 4, 5:22 PM CDTMesoscale DiscussionSPCBailey, Castro, Cochran, Hockley, Lamb, Parmer and 2 more113 min
May 4, 5:30 PM CDTMesoscale DiscussionSPCCass, Marion60 min

Nearby

Mesoscale Discussions in Texas, 2006Mesoscale Discussions in Oklahoma, 2006Every mesoscale discussion in 2006

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.