A strong and long lived outflow boundary moved from northeast to southwest through Southwest Arkansas, into Northwest Louisiana, and then into Northeast Texas during the daytime hours on 8/24/2011. Ahead of the boundary was very hot and unstable air with temperatures at or just above 100 degrees. Strong damaging winds occurred along the initial gust front with the outflow boundary and also occasionally within the thunderstorms in the wake of the outflow boundary.

Thunderstorm Wind in HARRISON, TEXAS
From 24-AUG-11 13:20:00 to 24-AUG-11 13:20:00 (CST-6)
Location: ELYSIAN FLDS
Magnitude: 52.00 EG
Property damage: 0.20K
Crop damage: 0.00K
Reported by: NWS Employee

Large tree was downed at the residence and had to be cut out of the street.  A power pole was also downed.  The tree fell into one section of fence.

Thunderstorm Wind in CASS, TEXAS
From 24-AUG-11 12:50:00 to 24-AUG-11 12:50:00 (CST-6)
Location: CAMP
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed near CR. 2934 near Marietta, Texas.

Thunderstorm Wind in HARRISON, TEXAS
From 24-AUG-11 13:00:00 to 24-AUG-11 13:00:00 (CST-6)
Location: MARSHALL ARPT
Magnitude: 58.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A building's roof was damaged at the Harrison County Airport and a fire was also reported in the building.

Thunderstorm Wind in GREGG, TEXAS
From 24-AUG-11 13:30:00 to 24-AUG-11 13:30:00 (CST-6)
Location: GREGGTON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees and powerlines were downed across the city of Longview.  Power outages were also noted at several locations in the city.

Thunderstorm Wind in PANOLA, TEXAS
From 24-AUG-11 13:35:00 to 24-AUG-11 13:35:00 (CST-6)
Location: CARTHAGE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Numerous trees were downed throughout the county.

Thunderstorm Wind in GREGG, TEXAS
From 24-AUG-11 13:35:00 to 24-AUG-11 13:35:00 (CST-6)
Location: (GGG)GREGG CO ARPT L
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A power pole was broken in the eastern portion of town.

Thunderstorm Wind in RUSK, TEXAS
From 24-AUG-11 14:10:00 to 24-AUG-11 14:10:00 (CST-6)
Location: HENDERSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree was downed south of Henderson, Texas along with powerlines downed.

Thunderstorm Wind in SMITH, TEXAS
From 24-AUG-11 14:41:00 to 24-AUG-11 14:41:00 (CST-6)
Location: PEACEFUL VLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated the wind gusts on the south side of Tyler, Texas.

Thunderstorm Wind in CHEROKEE, TEXAS
From 24-AUG-11 15:05:00 to 24-AUG-11 15:05:00 (CST-6)
Location: RUSK
Magnitude: 53.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Several trees were downed across the county.

Thunderstorm Wind in ANGELINA, TEXAS
From 24-AUG-11 15:15:00 to 24-AUG-11 15:15:00 (CST-6)
Location: ZAVALLA
Magnitude: 53.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were downed along Hwy. 69 near Zavalla, Texas.

Hail in TITUS, TEXAS
From 24-AUG-11 14:02:00 to 24-AUG-11 14:02:00 (CST-6)
Location: WINFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public