Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 774

May 8, 200531 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 8, 2005, 11:26 AM CDT for 31 counties in Texas. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued
May 8, 2005, 11:26 AM CDT (16:26 UTC)
Expired
May 8, 2005, 12:30 PM CDT
In force
64 min
Issued by
the Storm Prediction Center
All 31 counties

Atascosa County, TX, Austin County, TX, Bee County, TX, Bexar County, TX, Brazoria County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Fayette County, TX, Fort Bend County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Harris County, TX, Jackson County, TX, Karnes County, TX, La Salle County, TX, Lavaca County, TX, Live Oak County, TX, Matagorda County, TX, McMullen County, TX, Medina County, TX, Uvalde County, TX, Victoria County, TX, Waller County, TX, Wharton County, TX, Wilson County, TX, Zavala County, TX

The radar

The Austin/San Antonio radar (KEWX), 73 km from the middle of the area, began a volume at 16:29 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

Corpus Christi, TX (KCRP), launched 12:00Z, 4.4 hours before the alert went out and 157 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, Corpus Christi, TX at 12:00Z on 2005-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1912 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, Corpus Christi, TX at 12:00Z on 2005-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
1912 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
644 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.4

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 7, 7:10 PM CDTSevere Thunderstorm WatchSPCCoke, Crockett, Fisher, Glasscock, Howard, Irion and 13 more7 hr
May 7, 8:51 PM CDTMesoscale DiscussionSPCChildress, Collingsworth, Cottle, Dickens, Donley, Foard and 9 more54 min
May 7, 11:41 PM CDTMesoscale DiscussionSPCCallahan, Coke, Coleman, Concho, Crockett, Eastland and 13 more94 min
May 8, 1:22 AM CDTMesoscale DiscussionSPCConcho, Edwards, Kerr, Kimble, McCulloch, Mason and 6 more53 min
May 8, 1:50 AM CDTSevere Thunderstorm WatchSPCBandera, Crockett, Edwards, Gillespie, Kerr, Kimble and 11 more7 hr
May 8, 4:59 AM CDTMesoscale DiscussionSPCBandera, Edwards, Gillespie, Hamilton, Kerr, Kimble and 6 more61 min
May 8, 5:45 AM CDTSevere Thunderstorm WatchSPCAnderson, Austin, Bandera, Bastrop, Bell, Bexar and 50 more6 hr
May 8, 7:34 AM CDTMesoscale DiscussionSPCAnderson, Bandera, Bastrop, Blanco, Brazos, Burleson and 19 more56 min
May 8, 8:37 AM CDTMesoscale DiscussionSPCAngelina, Gregg, Harrison, Nacogdoches, Panola, Polk and 6 more53 min
May 8, 11:50 AM CDTTornado WatchSPCAtascosa, Austin, Bandera, Bee, Bexar, Brazoria and 33 more7 hr
May 8, 1:06 PM CDTMesoscale DiscussionSPCBandera, Baylor, Borden, Brown, Callahan, Childress and 44 more114 min
May 8, 2:05 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Brown, Callahan, Clay, Coke and 22 more7 hr
May 8, 2:44 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bee, Brazoria, Colorado, DeWitt and 20 more2 hr
May 8, 3:54 PM CDTMesoscale DiscussionSPCChambers, Hardin, Jasper, Jefferson, Liberty, Montgomery and 8 more96 min
May 8, 5:39 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Cooke, Jack, Montague and 4 more96 min
May 8, 6:00 PM CDTSevere Thunderstorm WatchSPCAransas, Brooks, Duval, Jim Hogg, Jim Wells, Kenedy and 3 more5 hr
May 8, 6:42 PM CDTMesoscale DiscussionSPCEdwards, Kerr, Kimble, Mason, Real, San Saba93 min

Nearby

Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005

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.