Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 2432

November 23, 2004Lafayette County, Miller County, Arkansas; 53 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Nov 23, 2004, 10:37 AM CST for Lafayette County, Miller County, Arkansas; 53 counties in Texas. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: Nov 23, 2004, 10:37 AM CST (16:37 UTC)
Expired: Nov 23, 2004, 12:30 PM CST
In force: 113 min
Issued by: the Storm Prediction Center

All 55 counties

Lafayette County, AR, Miller County, AR, Anderson County, TX, Austin County, TX, Bastrop County, TX, Bell County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Colorado County, TX, Comal County, TX, Ellis County, TX, Falls County, TX, Fayette County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Grimes County, TX, Guadalupe County, TX, Harrison County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Kendall County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, Marion County, TX, McLennan County, TX, Milam County, TX, Morris County, TX, Navarro County, TX, Panola County, TX, Rains County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Travis County, TX, Upshur County, TX, Van Zandt County, TX, Walker County, TX, Washington County, TX, Williamson County, TX, Wood County, TX

The watches that followed

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

Tornado Watch 885Nov 23, 2:00 PM CST

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 4.6 hours before the alert went out and 221 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 130 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 496 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.6

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.

Issued	Product	Office	Counties	Lasted
Nov 23, 8:45 AM CST	Tornado Watch	SPC	Lafayette, Miller	6 hr
Nov 23, 12:48 PM CST	Mesoscale Discussion	SPC	Lafayette, Miller	117 min
Nov 23, 1:40 PM CST	Mesoscale Discussion	SPC	Arkansas, Conway, Cross, Faulkner, Garland, Grant and 14 more	95 min
Nov 23, 2:00 PM CST	Tornado Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 25 more	7 hr
Nov 23, 3:21 PM CST	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 25 more	114 min
Nov 22, 6:03 PM CST	Mesoscale Discussion	SPC	Austin, Brazoria, Chambers, Colorado, Fort Bend, Hardin and 16 more	2 hr
Nov 22, 10:30 PM CST	Mesoscale Discussion	SPC	Borden, Coke, Crockett, Dawson, Fisher, Garza and 21 more	2 hr
Nov 22, 11:00 PM CST	Tornado Watch	SPC	Andrews, Borden, Coke, Crane, Crockett, Dawson and 22 more	6 hr
Nov 23, 2:58 AM CST	Mesoscale Discussion	SPC	Borden, Coke, Crockett, Fisher, Glasscock, Howard and 11 more	92 min
Nov 23, 4:10 AM CST	Severe Thunderstorm Watch	SPC	Brown, Callahan, Coke, Coleman, Comanche, Concho and 19 more	5 hr
Nov 23, 7:06 AM CST	Mesoscale Discussion	SPC	Anderson, Angelina, Austin, Bastrop, Bell, Blanco and 46 more	84 min
Nov 23, 7:19 AM CST	Mesoscale Discussion	SPC	Brown, Callahan, Coleman, Comanche, Concho, Denton and 13 more	86 min
Nov 23, 7:40 AM CST	Mesoscale Discussion	SPC	Dallam	6 hr
Nov 23, 9:15 AM CST	Mesoscale Discussion	SPC	Collin, Dallas, Delta, Denton, Fannin, Grayson and 5 more	3 hr
Nov 23, 9:45 AM CST	Tornado Watch	SPC	Angelina, Austin, Brazoria, Calhoun, Chambers, Colorado and 25 more	5 hr
Nov 23, 11:38 AM CST	Mesoscale Discussion	SPC	Angelina, Austin, Brazoria, Calhoun, Chambers, Colorado and 25 more	2 hr
Nov 23, 12:15 PM CST	Mesoscale Discussion	SPC	Carson, Dallam, Hansford, Hartley, Hutchinson, Moore and 3 more	5 hr
Nov 23, 12:16 PM CST	Mesoscale Discussion	SPC	Bosque, Brown, Coke, Coleman, Concho, Coryell and 22 more	2 hr
Nov 23, 2:14 PM CST	Mesoscale Discussion	SPC	Briscoe, Childress, Cottle, Crosby, Dickens, Fisher and 20 more	3 hr
Nov 23, 3:15 PM CST	Severe Thunderstorm Watch	SPC	Atascosa, Bandera, Bexar, Blanco, Bosque, Brown and 40 more	5 hr
Nov 23, 5:30 PM CST	Severe Thunderstorm Watch	SPC	Atascosa, Bandera, Bastrop, Bell, Bexar, Blanco and 64 more	6 hr

Nearby

Mesoscale Discussions in Texas, 2004 Mesoscale Discussions in Arkansas, 2004 Every 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.