Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 938

May 27, 200431 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 27, 2004, 6:10 AM CDT for 31 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2004, 6:10 AM CDT (11:10 UTC)
Expired
May 27, 2004, 8:45 AM CDT
In force
3 hr
Issued by
the Storm Prediction Center
All 31 counties

Andrews County, TX, Borden County, TX, Coke County, TX, Crane County, TX, Crockett County, TX, Crosby County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Kent County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Schleicher County, TX, Scurry County, TX, Sterling County, TX, Sutton County, TX, Terry County, TX, Tom Green County, TX, Upton County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 52 km from the middle of the area, began a volume at 11:11 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

Midland Regional, TX (KMAF), launched 00:00Z, 11.2 hours before the alert went out and 53 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 2004-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 648 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 2004-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
648 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
2320 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

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 26, 8:29 PM CDTMesoscale DiscussionSPCChildress91 min
May 26, 8:54 PM CDTMesoscale DiscussionSPCChildress, Cottle, Fisher, Foard, Hardeman, Haskell and 4 more66 min
May 27, 10:29 AM CDTMesoscale DiscussionSPCAndrews, Archer, Baylor, Borden, Briscoe, Callahan and 54 more2 hr
May 27, 2:45 PM CDTSevere Thunderstorm WatchSPCBrown, Callahan, Coke, Coleman, Comanche, Concho and 29 more6 hr
May 27, 4:04 PM CDTMesoscale DiscussionSPCBosque, Brown, Callahan, Coke, Coleman, Collin and 50 more116 min
May 27, 5:35 PM CDTSevere Thunderstorm WatchSPCBosque, Collin, Cooke, Dallas, Delta, Denton and 22 more5 hr

Nearby

Mesoscale Discussions in Texas, 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.