Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 2427

November 23, 200417 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Nov 23, 2004, 2:58 AM CST for 17 counties in Texas. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Nov 23, 2004, 2:58 AM CST (08:58 UTC)
Expired: Nov 23, 2004, 4:30 AM CST
In force: 92 min
Issued by: the Storm Prediction Center

Counties Borden County, TX, Coke County, TX, Crockett County, TX, Fisher County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Tom Green County, TX, Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 67 km from the middle of the area, began a volume at 08:58 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.

Severe Thunderstorm Watch 882Nov 23, 4:10 AM CST

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 9.0 hours before the alert went out and 68 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: 141 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 693 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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.

Issued	Product	Office	Counties	Lasted
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, 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, 8:45 AM CST	Tornado Watch	SPC	Anderson, Austin, Bastrop, Bell, Blanco, Brazos and 47 more	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, 10:37 AM CST	Mesoscale Discussion	SPC	Anderson, Austin, Bastrop, Bell, Blanco, Brazos and 47 more	113 min
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, 12:48 PM CST	Mesoscale Discussion	SPC	Anderson, Bastrop, Bell, Blanco, Brazoria, Brazos and 58 more	117 min
Nov 23, 2:00 PM CST	Tornado Watch	SPC	Anderson, Angelina, Austin, Bowie, Brazoria, Brazos and 42 more	7 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, 3:21 PM CST	Mesoscale Discussion	SPC	Anderson, Angelina, Austin, Bowie, Brazoria, Brazos and 42 more	114 min
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 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; radar from the NEXRAD Level II archive.