A warm and unstable airmass developed across the Southern Plains and Lower Mississippi Valley during the day as an ejecting upper trough moved into the Plains.  A strong cold front moved out of Southern Oklahoma and North Texas during the day with a very strong pressure gradient ahead of the cold front.  Strong gradient winds from the south approached 40 mph across many locations with the ambient temperature reaching 70 degrees.  Deep layer shear in the lowest 6 kilometers were in excess of 50kts with strong low level shear noted as well.  Combine that with excessive atmospheric lapse rates and all the ingredients were present for strong to severe thunderstorms that produced large hail, damaging wind gusts and isolated tornadoes.

Hail in CASS, TEXAS
From 18-FEB-13 15:10:00 to 18-FEB-13 15:10:00 (CST-6)
Location: SPRINGDALE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Half dollar sized hail fell near Domino, Texas.

Hail in RUSK, TEXAS
From 18-FEB-13 17:28:00 to 18-FEB-13 17:28:00 (CST-6)
Location: HENDERSON RUSK CO AR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail fell at the intersection of FM 839 and Hwy. 79.

Tornado in RUSK, TEXAS
From 18-FEB-13 18:01:00 to 18-FEB-13 18:01:00 (CST-6)
Location: SHILOH
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down 4 miles northeast of Mount Enterprise, Texas.  Damage consisted of large hardwood branches that were downed along HWY 315.

Tornado in RUSK, TEXAS
From 18-FEB-13 18:12:00 to 18-FEB-13 18:12:00 (CST-6)
Location: CONCORD
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down 5 miles east northeast of Mount Enterprise, Texas.  Damage consisted of several trees snapped and an above-ground swimming pool was wrapped around a tree along FM 95.

Tornado in RUSK, TEXAS
From 18-FEB-13 17:18:00 to 18-FEB-13 17:18:00 (CST-6)
Location: MONROE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and concluded that a brief tornado touched down and snapped the tops out of several pine trees along Hwy. 322 near Barnes Creek.

Tornado in RUSK, TEXAS
From 18-FEB-13 17:27:00 to 18-FEB-13 17:31:00 (CST-6)
Location: STEWART
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down west of Tatum, Texas.  Damage consisted of a pine tree
uprooted along with several tops of pine trees snapped along County Road 2126 and FM 782.

Tornado in PANOLA, TEXAS
From 18-FEB-13 17:57:00 to 18-FEB-13 17:59:00 (CST-6)
Location: BECKVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and concluded that a tornado touched down north northeast of Beckville, Texas.  Damage consisted of numerous large limbs and a few trees snapped along FM 1794.  Several pictures of the funnel were captured.

Tornado in RUSK, TEXAS
From 18-FEB-13 18:19:00 to 18-FEB-13 18:19:00 (CST-6)
Location: CALEDONIA
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey in Rusk County and determined than an EF1 tornado touched down 7 miles north northwest of Garrison, Texas.  Storm damage consisted of the roof of a metal building having been partially peeled back.  The roof on a mobile home was damaged, and a few trees were snapped along US Hwy. 84 in the community of Caledonia.

Hail in CASS, TEXAS
From 18-FEB-13 14:39:00 to 18-FEB-13 14:39:00 (CST-6)
Location: DOUGLASSVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GREGG, TEXAS
From 18-FEB-13 17:33:00 to 18-FEB-13 17:33:00 (CST-6)
Location: EASTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail fell southeast of Longview, Texas.

Hail in PANOLA, TEXAS
From 18-FEB-13 18:25:00 to 18-FEB-13 18:25:00 (CST-6)
Location: DE BERRY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail was reported in the Deberry community.

Tornado in RUSK, TEXAS
From 18-FEB-13 17:27:00 to 18-FEB-13 17:29:00 (CST-6)
Location: PLEASANT GROVE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey in Rusk County, Texas and determined that a weak EF0 tornado touched down east of New Summerfield, Texas.  Damage consisted of several trees uprooted and large branches snapped along FM 1798 and FM 839 near Cat Creek.

Tornado in PANOLA, TEXAS
From 18-FEB-13 18:05:00 to 18-FEB-13 18:07:00 (CST-6)
Location: RIDERVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down north of Carthage, Texas.  Damage consisted of numerous large limbs and a few pine trees snapped along FM 1794 just south of the Sabine River.

Tornado in PANOLA, TEXAS
From 18-FEB-13 18:13:00 to 18-FEB-13 18:13:00 (CST-6)
Location: DE BERRY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down briefly northeast of Carthage, Texas.  Damage consisted of
a small, snapped hardwood tree along County Road 307.

Tornado in PANOLA, TEXAS
From 18-FEB-13 18:19:00 to 18-FEB-13 18:19:00 (CST-6)
Location: DE BERRY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a brief tornado touched down northeast of Carthage, Texas.  Damage consisted of two pine trees snapped along FM 31 near the County Road 316 intersection.

Tornado in SHELBY, TEXAS
From 18-FEB-13 18:37:00 to 18-FEB-13 18:37:00 (CST-6)
Location: TIMPSON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down near Timpson, Texas.  Storm damage consisted of several large snapped hardwood branches along County Road 4916 and also along US Hwy. 59.

Tornado in RUSK, TEXAS
From 18-FEB-13 17:48:00 to 18-FEB-13 17:51:00 (CST-6)
Location: LANEVILLE
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that an EF1 tornado first touched down 6 miles northwest of Mount Enterprise, Texas.  Damage consisted of  a travel trailer which was overturned and a roof torn off of a metal barn along County Road 3168.  In addition, trees were snapped along with large branches downed along County Road 3156.

Tornado in RUSK, TEXAS
From 18-FEB-13 17:13:00 to 18-FEB-13 17:14:00 (CST-6)
Location: CROSS RDS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The National Weather Service conducted a storm survey and determined that a weak EF0 tornado touched down 7 miles southeast of Kilgore, Texas.  Damage consisted of
several large branches and a hardwood tree snapped along County Roads 281 and 283.