Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1379

June 13, 2003Harding County, Quay County, Union County, New Mexico; 16 counties in Oklahoma; 21 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2003, 6:34 PM MDT for Harding County, Quay County, Union County, New Mexico; 16 counties in Oklahoma; 21 counties in Texas. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2003, 6:34 PM MDT (00:34 UTC)
Expired: Jun 13, 2003, 8:00 PM MDT
In force: 86 min
Issued by: the Storm Prediction Center

All 40 counties

Harding County, NM, Quay County, NM, Union County, NM, Beckham County, OK, Blaine County, OK, Cimarron County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Woodward County, OK, Armstrong County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 60 km from the middle of the area, began a volume at 00:34 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 541Jun 13, 7:10 PM MDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.6 hours before the alert went out and 60 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: 1597 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1565 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.5

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 13, 7:30 PM MDT	Mesoscale Discussion	SPC	Curry, De Baca, Lea, Roosevelt	90 min
Jun 14, 1:41 PM MDT	Mesoscale Discussion	SPC	Chaves, De Baca, Eddy, Guadalupe, Lea, Lincoln	109 min
Jun 13, 6:05 PM MDT	Severe Thunderstorm Watch	SPC	Caddo, Canadian, Cleveland, Creek, Grady, Hughes and 14 more	5 hr
Jun 13, 7:10 PM MDT	Severe Thunderstorm Watch	SPC	Beckham, Blaine, Comanche, Custer, Greer, Harmon and 5 more	4 hr
Jun 13, 8:59 PM MDT	Mesoscale Discussion	SPC	Beckham, Caddo, Comanche, Custer, Dewey, Greer and 6 more	61 min
Jun 14, 9:49 AM MDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Custer, Dewey, Ellis and 9 more	3 hr
Jun 13, 6:35 PM MDT	Severe Thunderstorm Watch	SPC	Austin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 12 more	4 hr
Jun 13, 7:09 PM MDT	Mesoscale Discussion	SPC	Aransas, Atascosa, Bee, Calhoun, DeWitt, Duval and 15 more	96 min
Jun 13, 10:00 PM MDT	Mesoscale Discussion	SPC	Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more	60 min

Nearby

Mesoscale Discussions in Texas, 2003 Mesoscale Discussions in Oklahoma, 2003 Mesoscale Discussions in New Mexico, 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.