Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1372

June 13, 200312 counties in Oklahoma; 27 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2003, 3:20 PM CDT for 12 counties in Oklahoma; 27 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2003, 3:20 PM CDT (20:20 UTC)
Expired: Jun 13, 2003, 4:45 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center

All 39 counties

Beckham County, OK, Caddo County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Roger Mills County, OK, Washita County, OK, Woodward County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 40 km from the middle of the area, began a volume at 20:24 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.3 hours before the alert went out and 39 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: 61 J/kg
Mixed-layer CIN: -335 J/kg
Mixed-layer LCL: 1909 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

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
Jun 12, 7:13 PM CDT	Mesoscale Discussion	SPC	Comanche, Cotton, Harmon, Jackson, Tillman	92 min
Jun 13, 12:02 AM CDT	Mesoscale Discussion	SPC	Bryan, Carter, Cotton, Jefferson, Love, Marshall and 2 more	88 min
Jun 13, 1:10 AM CDT	Severe Thunderstorm Watch	SPC	Beckham, Comanche, Cotton, Greer, Harmon, Jackson and 2 more	5 hr
Jun 13, 5:11 AM CDT	Mesoscale Discussion	SPC	Comanche, Cotton, Greer, Harmon, Jackson, Jefferson and 2 more	64 min
Jun 13, 3:40 PM CDT	Severe Thunderstorm Watch	SPC	Beckham, Blaine, Cimarron, Comanche, Custer, Dewey and 10 more	5 hr
Jun 13, 6:44 PM CDT	Mesoscale Discussion	SPC	Canadian, Cherokee, Cleveland, Creek, Grady, Haskell and 18 more	91 min
Jun 12, 8:00 PM CDT	Severe Thunderstorm Watch	SPC	Chambers, Fort Bend, Grimes, Hardin, Harris, Jasper and 10 more	5 hr
Jun 12, 9:51 PM CDT	Mesoscale Discussion	SPC	Chambers, Fort Bend, Grimes, Hardin, Harris, Jasper and 10 more	54 min
Jun 13, 10:26 AM CDT	Mesoscale Discussion	SPC	Coke, Concho, Crockett, Irion, McCulloch, Menard and 3 more	94 min
Jun 13, 12:15 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Borden, Brown, Burnet, Callahan, Coke and 31 more	6 hr
Jun 13, 12:16 PM CDT	Mesoscale Discussion	SPC	Hardin, Jasper, Newton, Orange, Sabine, Tyler	119 min
Jun 13, 2:21 PM CDT	Mesoscale Discussion	SPC	Bastrop, Brazos, Burleson, Grimes, Hardin, Harris and 14 more	54 min
Jun 13, 2:56 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Brown, Callahan, Coke, Coleman and 20 more	2 hr
Jun 13, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	Austin, Bandera, Bastrop, Bexar, Blanco, Brazos and 40 more	5 hr
Jun 13, 4:54 PM CDT	Mesoscale Discussion	SPC	Austin, Bandera, Bastrop, Bexar, Blanco, Brazos and 42 more	96 min
Jun 13, 5:13 PM CDT	Mesoscale Discussion	SPC	Andrews, Bailey, Cochran, Crane, Dawson, Ector and 11 more	62 min
Jun 13, 5:40 PM CDT	Severe Thunderstorm Watch	SPC	Andrews, Bailey, Borden, Castro, Cochran, Coke and 29 more	5 hr
Jun 13, 6:55 PM CDT	Severe Thunderstorm Watch	SPC	Aransas, Atascosa, Bee, Calhoun, DeWitt, Duval and 15 more	5 hr

Nearby

Mesoscale Discussions in Texas, 2003 Mesoscale Discussions in Oklahoma, 2003 Every mesoscale discussion in 2003

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.