Alert archive / Texas / Mesoscale Discussions in 2023

Mesoscale Discussion 1011

June 13, 20234 states

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2023, 8:02 AM CDT for 4 states. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2023, 8:02 AM CDT (13:02 UTC)
Expired: Jun 13, 2023, 9:30 AM CDT
In force: 88 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 279

All 51 counties

Ashley County, AR, Bradley County, AR, Calhoun County, AR, Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Franklin Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Union Parish, LA, Webster Parish, LA, Winn Parish, LA, Bryan County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Delta County, TX, Fannin County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Hopkins County, TX, Hunt County, TX, Lamar County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 39 km from the middle of the area, began a volume at 13:02 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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 1.0 hours before the alert went out and 36 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: 1618 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 2:52 AM CDT	Mesoscale Discussion	SPC	Columbia, Hempstead, Lafayette, Little River, Miller, Sevier	83 min
Jun 13, 3:30 AM CDT	Severe Thunderstorm Watch	SPC	Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 2 more	7 hr
Jun 13, 5:39 AM CDT	Mesoscale Discussion	SPC	Howard, Little River, Miller, Sevier	96 min
Jun 13, 9:30 AM CDT	Mesoscale Discussion	SPC	Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 7 more	60 min
Jun 13, 12:11 PM CDT	Severe Thunderstorm Watch	SPC	Columbia, Lafayette, Little River, Miller, Union	5 hr
Jun 13, 2:25 PM CDT	Mesoscale Discussion	SPC	Miller	2 hr
Jun 13, 4:43 PM CDT	Severe Thunderstorm Watch	SPC	Arkansas, Bradley, Calhoun, Clark, Cleveland, Columbia and 17 more	6 hr
Jun 13, 11:22 AM CDT	Mesoscale Discussion	SPC	Bienville, Bossier, Caddo, De Soto, Red River, Webster	2 hr
Jun 13, 1:07 PM CDT	Mesoscale Discussion	SPC	Cimarron, Texas	83 min
Jun 13, 2:26 PM CDT	Severe Thunderstorm Watch	SPC	Beaver, Cimarron, Texas	7 hr
Jun 13, 4:51 PM CDT	Mesoscale Discussion	SPC	Cimarron	84 min
Jun 12, 7:49 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Brown, Burnet, Comanche, Coryell and 7 more	86 min
Jun 12, 9:33 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Burnet, Comanche, Coryell, Erath and 10 more	57 min
Jun 13, 1:30 PM CDT	Mesoscale Discussion	SPC	Bosque, Collin, Dallas, Denton, Ellis, Erath and 15 more	90 min
Jun 13, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	Collin, Cooke, Dallas, Delta, Denton, Ellis and 17 more	6 hr
Jun 13, 4:04 PM CDT	Mesoscale Discussion	SPC	Bosque, Brown, Burnet, Coleman, Comanche, Concho and 11 more	86 min
Jun 13, 5:49 PM CDT	Mesoscale Discussion	SPC	Collin, Cooke, Dallas, Delta, Denton, Ellis and 17 more	86 min
Jun 13, 6:57 PM CDT	Mesoscale Discussion	SPC	Carson, Gray, Hemphill, Hutchinson, Roberts, Wheeler	63 min

Nearby

Mesoscale Discussions in Texas, 2023 Mesoscale Discussions in Louisiana, 2023 Mesoscale Discussions in Arkansas, 2023 Every mesoscale discussion in 2023

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.