Alert archive / Louisiana / Tornado Watches in 2022

Tornado Watch 583

December 13, 202210 counties in Arkansas; 21 parishes in Louisiana; 10 counties in Texas

The Storm Prediction Center issued this tornado watch at Dec 13, 2022, 2:15 PM CST for 10 counties in Arkansas; 21 parishes in Louisiana; 10 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Dec 13, 2022, 2:15 PM CST (20:15 UTC)
Expired: Dec 13, 2022, 10:00 PM CST
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 65 kt

All 41 counties

Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Lafayette County, AR, Nevada County, AR, Ouachita County, AR, Union County, AR, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Angelina County, TX, Jasper County, TX, Nacogdoches County, TX, Newton County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Trinity County, TX, Tyler County, TX

The radar

The Shreveport radar (KSHV), 83 km from the middle of the area, began a volume at 20:15 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 80%
One or more EF2 to EF5 tornadoes: 60%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Dec 13, 2:28 PM CST	Tornado Warning	SHV	De Soto, Sabine	47 min
Dec 13, 2:43 PM CST	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches	47 min
Dec 13, 2:53 PM CST	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Miller, Nevada	52 min
Dec 13, 3:02 PM CST	Severe Thunderstorm Warning	SHV	Lafayette, Miller	43 min
Dec 13, 3:15 PM CST	Tornado Warning	SHV	Nacogdoches, Rusk	45 min
Dec 13, 3:17 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Nacogdoches	43 min
Dec 13, 3:29 PM CST	Tornado Warning	SHV	Caddo	31 min
Dec 13, 3:38 PM CST	Tornado Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	37 min
Dec 13, 3:41 PM CST	Severe Thunderstorm Warning	HGX	Polk, Trinity	34 min
Dec 13, 3:47 PM CST	Severe Thunderstorm Warning	SHV	Columbia, Lafayette, Nevada	43 min
Dec 13, 3:49 PM CST	Tornado Warning	SHV	Angelina, Nacogdoches, San Augustine	41 min
Dec 13, 3:54 PM CST	Tornado Warning Tornado observedConsiderable damage threat	SHV	Bossier, Caddo	36 min
Dec 13, 4:01 PM CST	Tornado Warning	SHV	Natchitoches, Sabine	27 min
Dec 13, 4:10 PM CST	Tornado Warning	SHV	Caddo, De Soto	50 min
Dec 13, 4:21 PM CST	Tornado Warning	SHV	San Augustine, Shelby	39 min
Dec 13, 4:22 PM CST	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	38 min
Dec 13, 4:28 PM CST	Tornado Warning	SHV	Nacogdoches, San Augustine, Shelby	35 min
Dec 13, 4:48 PM CST	Tornado Warning Tornado observedConsiderable damage threat	SHV	Bossier, Caddo, De Soto	27 min
Dec 13, 4:51 PM CST	Tornado Warning	SHV	Bossier, Webster	23 min
Dec 13, 4:59 PM CST	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Dallas, Ouachita	21 min
Dec 13, 5:02 PM CST	Tornado Warning	SHV	De Soto, Sabine	43 min
Dec 13, 5:27 PM CST	Tornado Warning	SHV	De Soto, Red River	18 min
Dec 13, 6:10 PM CST	Tornado Warning	LCH	Rapides	18 min
Dec 13, 7:36 PM CST	Tornado Warning	SHV	Union	39 min
Dec 13, 7:37 PM CST	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Drew, Lincoln	38 min
Dec 13, 7:51 PM CST	Tornado Warning	LZK	Bradley, Calhoun, Drew	39 min
Dec 13, 8:18 PM CST	Tornado Warning	SHV	Grant, LaSalle	42 min
Dec 13, 8:21 PM CST	Tornado Warning	SHV	Natchitoches, Sabine	39 min
Dec 13, 8:22 PM CST	Tornado Warning	SHV	Union	38 min
Dec 13, 8:28 PM CST	Tornado Warning	SHV	Ouachita	14 min
Dec 13, 8:57 PM CST	Tornado Warning	LCH	Jasper, Newton	17 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

Shreveport, LA (KSHV), launched 12:00Z, 8.3 hours before the alert went out and 74 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: 0 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 373 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 13, 8:59 AM CST	Mesoscale Discussion	SPC	Little River, Sevier	2 hr
Dec 13, 9:07 AM CST	Tornado Watch	SPC	Hempstead, Howard, Little River, Miller, Pike, Polk and 1 more	8 hr
Dec 13, 11:41 AM CST	Mesoscale Discussion	SPC	Little River, Miller	2 hr
Dec 13, 1:33 PM CST	Mesoscale Discussion	SPC	Columbia, Lafayette, Miller, Nevada, Ouachita, Union	117 min
Dec 13, 5:04 PM CST	Mesoscale Discussion	SPC	Ashley, Bradley, Calhoun, Chicot, Cleveland, Columbia and 5 more	116 min
Dec 13, 2:12 PM CST	Mesoscale Discussion	SPC	Bossier, Caddo, De Soto, Red River, Sabine	63 min
Dec 13, 3:51 PM CST	Mesoscale Discussion	SPC	Bienville, Bossier, Caddo, Claiborne, De Soto, Jackson and 7 more	84 min
Dec 13, 4:44 PM CST	Mesoscale Discussion	SPC	Bienville, De Soto, Natchitoches, Red River, Sabine	91 min
Dec 12, 7:12 PM CST	Mesoscale Discussion	SPC	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
Dec 12, 8:25 PM CST	Tornado Watch	SPC	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 6 more	4 hr
Dec 12, 9:10 PM CST	Mesoscale Discussion	SPC	Briscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 8 more	3 hr
Dec 12, 9:54 PM CST	Tornado Watch	SPC	Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more	6 hr
Dec 12, 11:24 PM CST	Mesoscale Discussion	SPC	Childress, Collingsworth, Hall, Hardeman, Wheeler	2 hr
Dec 13, 3:07 AM CST	Mesoscale Discussion	SPC	Clay, Cooke, Grayson, Montague	113 min
Dec 13, 3:58 AM CST	Tornado Watch	SPC	Archer, Brown, Clay, Collin, Comanche, Cooke and 21 more	7 hr
Dec 13, 6:00 AM CST	Mesoscale Discussion	SPC	Cooke, Dallas, Denton, Erath, Hood, Jack and 6 more	90 min

Nearby

Tornado Watches in Louisiana, 2022 Tornado Watches in Arkansas, 2022 Tornado Watches in Texas, 2022 Every tornado watch in 2022

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.