Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 541

June 13, 200311 counties in Oklahoma; 16 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 13, 2003, 8:10 PM CDT for 11 counties in Oklahoma; 16 counties in Texas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jun 13, 2003, 8:10 PM CDT (01:10 UTC)
Expired: Jun 14, 2003, 12:00 AM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

All 27 counties

Beckham County, OK, Blaine County, OK, Comanche County, OK, Custer County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hemphill County, TX, Hutchinson County, TX, Moore County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 92 km from the middle of the area, began a volume at 01:14 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.

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 13, 8:27 PM CDT	Severe Thunderstorm Warning	AMA	Gray	63 min
Jun 13, 8:44 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	46 min
Jun 13, 8:54 PM CDT	Severe Thunderstorm Warning	AMA	Randall	66 min
Jun 13, 8:58 PM CDT	Severe Thunderstorm Warning	AMA	Potter	62 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.2 hours before the alert went out and 92 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

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 7:05 PM CDT	Severe Thunderstorm Watch	SPC	Caddo, Canadian, Cleveland, Creek, Grady, Hughes and 14 more	5 hr
Jun 13, 7:34 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Cimarron, Comanche, Custer, Dewey and 10 more	86 min
Jun 13, 9:59 PM CDT	Mesoscale Discussion	SPC	Beckham, Caddo, Comanche, Custer, Dewey, Greer and 6 more	61 min
Jun 14, 10:49 AM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Custer, Dewey, Ellis and 9 more	3 hr
Jun 13, 7:35 PM CDT	Severe Thunderstorm Watch	SPC	Austin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 12 more	4 hr
Jun 13, 8:09 PM CDT	Mesoscale Discussion	SPC	Aransas, Atascosa, Bee, Calhoun, DeWitt, Duval and 15 more	96 min
Jun 13, 8:30 PM CDT	Mesoscale Discussion	SPC	Andrews, Bailey, Borden, Castro, Cochran, Coke and 29 more	90 min
Jun 13, 11:00 PM CDT	Mesoscale Discussion	SPC	Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more	60 min
Jun 14, 2:41 PM CDT	Mesoscale Discussion	SPC	Culberson, Loving, Pecos, Reeves, Ward, Winkler	109 min

Nearby

Severe Thunderstorm Watches in Texas, 2003 Severe Thunderstorm Watches in Oklahoma, 2003 Every severe thunderstorm watch 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.