Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 769

May 7, 200519 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 7, 2005, 11:41 PM CDT for 19 counties in Texas. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 7, 2005, 11:41 PM CDT (04:41 UTC)
Expired: May 8, 2005, 1:15 AM CDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crockett County, TX, Eastland County, TX, Irion County, TX, Jones County, TX, Menard County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Runnels County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Sutton County, TX, Taylor County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 38 km from the middle of the area, began a volume at 04:43 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 229May 8, 1:50 AM CDT

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 4.7 hours before the alert went out and 141 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3709 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
May 7, 7:10 PM CDT	Severe Thunderstorm Watch	SPC	Coke, Crockett, Fisher, Glasscock, Howard, Irion and 13 more	7 hr
May 7, 8:51 PM CDT	Mesoscale Discussion	SPC	Childress, Collingsworth, Cottle, Dickens, Donley, Foard and 9 more	54 min
May 8, 1:22 AM CDT	Mesoscale Discussion	SPC	Concho, Edwards, Kerr, Kimble, McCulloch, Mason and 6 more	53 min
May 8, 1:50 AM CDT	Severe Thunderstorm Watch	SPC	Bandera, Crockett, Edwards, Gillespie, Kerr, Kimble and 11 more	7 hr
May 8, 4:59 AM CDT	Mesoscale Discussion	SPC	Bandera, Edwards, Gillespie, Hamilton, Kerr, Kimble and 6 more	61 min
May 8, 5:45 AM CDT	Severe Thunderstorm Watch	SPC	Anderson, Austin, Bandera, Bastrop, Bell, Bexar and 50 more	6 hr
May 8, 7:34 AM CDT	Mesoscale Discussion	SPC	Anderson, Bandera, Bastrop, Blanco, Brazos, Burleson and 19 more	56 min
May 8, 8:37 AM CDT	Mesoscale Discussion	SPC	Angelina, Gregg, Harrison, Nacogdoches, Panola, Polk and 6 more	53 min
May 8, 11:26 AM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bee, Bexar, Brazoria, Caldwell and 25 more	64 min
May 8, 11:50 AM CDT	Tornado Watch	SPC	Atascosa, Austin, Bandera, Bee, Bexar, Brazoria and 33 more	7 hr
May 8, 1:06 PM CDT	Mesoscale Discussion	SPC	Bandera, Baylor, Borden, Brown, Callahan, Childress and 44 more	114 min
May 8, 2:05 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Brown, Callahan, Clay, Coke and 22 more	7 hr
May 8, 2:44 PM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bee, Brazoria, Colorado, DeWitt and 20 more	2 hr
May 8, 3:54 PM CDT	Mesoscale Discussion	SPC	Chambers, Hardin, Jasper, Jefferson, Liberty, Montgomery and 8 more	96 min
May 8, 5:39 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Cooke, Jack, Montague and 4 more	96 min
May 8, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	Aransas, Brooks, Duval, Jim Hogg, Jim Wells, Kenedy and 3 more	5 hr
May 8, 6:42 PM CDT	Mesoscale Discussion	SPC	Edwards, Kerr, Kimble, Mason, Real, San Saba	93 min

Nearby

Mesoscale Discussions in Texas, 2005 Every 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.