Clusters of scattered thunderstorms developed each afternoon on the 20th and 21st of the month. Several of these thunderstorms produced downburst winds in excess of 55 mph. There were numerous reports of tree damage, pea to quarter sized hail, as well as damage from tree limbs falling on structures.

Thunderstorm Wind in COLLIN, TEXAS
From 20-JUL-12 15:10:00 to 20-JUL-12 15:12:00 (CST-6)
Location: PRINCETON
Magnitude: 52.00 EG
Property damage: 160.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Collin County emergency manager reported thunderstorm winds knocked several trees onto homes in and near Princeton. Approximately 20 homes sustained minor roof damage, while one mobile home sustained significant damage.

Thunderstorm Wind in DENTON, TEXAS
From 21-JUL-12 16:45:00 to 21-JUL-12 16:46:00 (CST-6)
Location: NAVO
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A gas station sign was blown down in Frisco, near the intersection of Eldorado and the Dallas North Tollway.

Thunderstorm Wind in VAN ZANDT, TEXAS
From 21-JUL-12 17:06:00 to 21-JUL-12 17:08:00 (CST-6)
Location: COLFAX
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Van Zandt County Emergency Manager reported large trees down on Farm to Market Road 16, just north of US Highway 64. One of the trees was at least 3 feet in diameter.

Thunderstorm Wind in DENTON, TEXAS
From 21-JUL-12 16:48:00 to 21-JUL-12 16:50:00 (CST-6)
Location: CARNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio operators estimated winds of 60 mph at the Lebanon exit of the Dallas North Tollway. Pea sized hail was observed as well.

Thunderstorm Wind in ANDERSON, TEXAS
From 21-JUL-12 18:20:00 to 21-JUL-12 18:20:00 (CST-6)
Location: FRANKSTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Anderson County law enforcement reported trees blown down near Frankston.

Thunderstorm Wind in ANDERSON, TEXAS
From 21-JUL-12 19:02:00 to 21-JUL-12 19:05:00 (CST-6)
Location: FRANKSTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio operators reported several trees blown down by thunderstorm winds in Frankston.

Thunderstorm Wind in COLLIN, TEXAS
From 20-JUL-12 15:20:00 to 20-JUL-12 15:20:00 (CST-6)
Location: MCKINNEY
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Several trees were knocked down in McKinney. Some tree limbs damaged car windows.

Thunderstorm Wind in DENTON, TEXAS
From 20-JUL-12 15:55:00 to 20-JUL-12 15:55:00 (CST-6)
Location: GRAPEVINE RES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A few large trees were knocked down due to high winds in Flower Mound.

Thunderstorm Wind in DENTON, TEXAS
From 20-JUL-12 15:50:00 to 20-JUL-12 15:50:00 (CST-6)
Location: CARNEY
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several trees and power poles were knocked down from high winds associated with thunderstorms in Frisco, just to the west of the Denton and Collin County line.

Thunderstorm Wind in DALLAS, TEXAS
From 20-JUL-12 16:28:00 to 20-JUL-12 16:28:00 (CST-6)
Location: (DFW)DALLAS-FT WORTH
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 64 MPH wind gust was measured at the Dallas-Fort Worth International Airport (KDFW).

Thunderstorm Wind in DALLAS, TEXAS
From 20-JUL-12 16:49:00 to 20-JUL-12 16:49:00 (CST-6)
Location: (DFW)DALLAS-FT WORTH
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 61 MPH wind gust was measured at the Dallas-Fort Worth International Airport (KDFW).

Thunderstorm Wind in TARRANT, TEXAS
From 20-JUL-12 16:55:00 to 20-JUL-12 16:55:00 (CST-6)
Location: EULESS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Large tree branches from an oak tree were knocked down due to a strong thunderstorm.

Thunderstorm Wind in DALLAS, TEXAS
From 20-JUL-12 17:25:00 to 20-JUL-12 17:25:00 (CST-6)
Location: DUNCANVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree limbs were knocked down by a strong thunderstorm in Duncanville. Some of the limbs were six inches in diameter and several feet long.

Thunderstorm Wind in VAN ZANDT, TEXAS
From 21-JUL-12 17:12:00 to 21-JUL-12 17:15:00 (CST-6)
Location: WALLACE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Van Zandt County Sheriff's Office reported several trees blown down between Wallace and Phalba.

Hail in HENDERSON, TEXAS
From 21-JUL-12 19:47:00 to 21-JUL-12 19:50:00 (CST-6)
Location: POYNOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

One inch hail fell near Poynor.

Thunderstorm Wind in HENDERSON, TEXAS
From 21-JUL-12 20:20:00 to 21-JUL-12 20:25:00 (CST-6)
Location: CROSS RDS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Henderson County Sheriff's Office reported several trees down in Crossroads.

Thunderstorm Wind in TARRANT, TEXAS
From 20-JUL-12 16:27:00 to 20-JUL-12 16:28:00 (CST-6)
Location: GRAPEVINE
Magnitude: 56.00 EG
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds blew over an 18 wheeler truck on State Highway 114 in Tarrant County. This occurred just north of the Dallas-Fort Worth International airport (KDFW).

Thunderstorm Wind in PARKER, TEXAS
From 20-JUL-12 16:35:00 to 20-JUL-12 16:35:00 (CST-6)
Location: SPRINGTOWN
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter measured a 65 MPH wind gust about 1 mile south of Springtown. Small tree limbs were also knocked down.