Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 911

May 26, 20049 counties in Oklahoma; 45 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 26, 2004, 12:12 PM CDT for 9 counties in Oklahoma; 45 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 26, 2004, 12:12 PM CDT (17:12 UTC)
Expired
May 26, 2004, 2:45 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
All 54 counties

Beckham County, OK, Custer County, OK, Dewey County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Washita County, OK, Andrews County, TX, Borden County, TX, Briscoe County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Ector County, TX, Floyd County, TX, Foard County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Hockley County, TX, Howard County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Swisher County, TX, Terry County, TX, Upton County, TX, Ward County, TX, Wichita County, TX, Wilbarger County, TX, Winkler County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 88 km from the middle of the area, began a volume at 17:15 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 12:00Z, 5.2 hours before the alert went out and 144 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 2004-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 566 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 2004-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.19395878Sfc1 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
566 J/kg
Mixed-layer CIN
-261 J/kg
Mixed-layer LCL
1034 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 25, 7:07 PM CDTMesoscale DiscussionSPCCarter, Comanche, Cotton, Garvin, Jefferson, Johnston and 5 more113 min
May 25, 11:28 PM CDTMesoscale DiscussionSPCHarmon, Jackson2 hr
May 26, 3:50 PM CDTSevere Thunderstorm WatchSPCGreer, Harmon, Jackson6 hr
May 26, 3:55 PM CDTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 16 more6 hr
May 26, 5:37 PM CDTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 15 more83 min
May 26, 6:07 PM CDTMesoscale DiscussionSPCGreer, Harmon, Jackson83 min
May 26, 6:25 PM CDTTornado WatchSPCCleveland, Creek, Grady, Lincoln, Logan, McClain and 7 more5 hr
May 26, 6:37 PM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Comanche and 24 more83 min

Nearby

Mesoscale Discussions in Texas, 2004Mesoscale Discussions in Oklahoma, 2004Every mesoscale discussion in 2004

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.