Thunderstorms developed ahead of a weak late summer cold front as it sagged southward into the Red River region. Storms produced downburst winds and hail in Cooke County near the Red River, then became a severe wind threat as the activity shifted south into the Fort Worth area. Wind gusts exceeding 70 MPH were reported at the WFO in Fort Worth and at Fort Worth Meacham International Airport. Significant damage occurred to 12 airplanes and 10 hangars at the airport with the damage estimated near $1 million. At Eagle Mountain Lake, two boat docks were torn free and about 40 boats sustained at least minor damage.

Thunderstorm Wind in JOHNSON, TEXAS
From 12-AUG-12 19:15:00 to 12-AUG-12 19:15:00 (CST-6)
Location: ALVARADO
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind removed the roof from a house.

Thunderstorm Wind in WISE, TEXAS
From 12-AUG-12 16:15:00 to 12-AUG-12 16:15:00 (CST-6)
Location: BRIDGEPORT MUNI ARPT
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that a roof was blown off of a 4 unit apartment complex.

Thunderstorm Wind in COOKE, TEXAS
From 12-AUG-12 16:32:00 to 12-AUG-12 16:32:00 (CST-6)
Location: VALLEY VIEW
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds estimated at 60 MPH blew a semi truck onto a pickup. This occurred on southbound Interstate 35 at exit 491. The interstate was closed following the accident.

Thunderstorm Wind in WISE, TEXAS
From 12-AUG-12 16:30:00 to 12-AUG-12 16:30:00 (CST-6)
Location: BRIDGEPORT
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that a large metal roof was blown off of a building in downtown Bridgeport.

Thunderstorm Wind in DENTON, TEXAS
From 12-AUG-12 17:00:00 to 12-AUG-12 17:00:00 (CST-6)
Location: BOLIVAR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter estimated a 60 mph gust.

Thunderstorm Wind in DENTON, TEXAS
From 12-AUG-12 17:08:00 to 12-AUG-12 17:08:00 (CST-6)
Location: STONY
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported that 20 to 30 trees were blown down just west of Krum.

Thunderstorm Wind in COOKE, TEXAS
From 12-AUG-12 16:17:00 to 12-AUG-12 16:17:00 (CST-6)
Location: WINDSOR
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter reports that large branches are blown down.

Thunderstorm Wind in WISE, TEXAS
From 12-AUG-12 17:01:00 to 12-AUG-12 17:01:00 (CST-6)
Location: DECATUR MUNI ARPT
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A storm spotter measured a 66 MPH wind gust out of the northwest.

Thunderstorm Wind in DENTON, TEXAS
From 12-AUG-12 17:38:00 to 12-AUG-12 17:38:00 (CST-6)
Location: KRUM
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter reported that three to four inch diameter tree branches were blow down just north of Krum.

Thunderstorm Wind in DELTA, TEXAS
From 12-AUG-12 20:53:00 to 12-AUG-12 20:53:00 (CST-6)
Location: COOPER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported tree damage in Cooper.

Thunderstorm Wind in HOPKINS, TEXAS
From 12-AUG-12 21:30:00 to 12-AUG-12 21:30:00 (CST-6)
Location: SULPHUR SPGS
Magnitude: 54.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported large trees blown down throughout the city of Sulphur Springs.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:02:00 to 12-AUG-12 18:02:00 (CST-6)
Location: SAGINAW
Magnitude: 58.00 MG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter reported a 67 mph wind gust.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:15:00 to 12-AUG-12 18:15:00 (CST-6)
Location: WATAUGA
Magnitude: 63.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A wind gust of 73 MPH was measured at the Dallas/Fort Worth National Weather Service Forecast Office.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 17:46:00 to 12-AUG-12 17:46:00 (CST-6)
Location: EAGLE MTN LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported that 3 inch diameter tree limbs were blown down near Eagle Mountain Lake.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:01:00 to 12-AUG-12 18:01:00 (CST-6)
Location: (FTW)MEACHAM ARPT FT
Magnitude: 66.00 MG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: ASOS

A 76 MPH wind gust was measured at Fort Worth Meacham Airport. Twelve aircraft on the field sustained damage, with three of the aircraft sustaining serious damage. A Cessna was carried over a fence by the strong winds. In addition, ten hangars were damaged; two of them sustaining serious damaged. Damage estimates over $1 million were estimated.

Thunderstorm Wind in ELLIS, TEXAS
From 12-AUG-12 19:13:00 to 12-AUG-12 19:13:00 (CST-6)
Location: WARD
Magnitude: 70.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter reported an 80 MPH wind gust 4 miles northeast of Venus.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:08:00 to 12-AUG-12 18:08:00 (CST-6)
Location: WESTOVER HILLS
Magnitude: 58.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust of 67 MPH was measured at the Naval Air Station Joint Reserve Base (KNFW). Large tree limbs and at least one power pole was knocked down.

Thunderstorm Wind in COMANCHE, TEXAS
From 12-AUG-12 19:55:00 to 12-AUG-12 19:55:00 (CST-6)
Location: COMANCHE CO ARPT
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A 69 MPH wind gust was measure at the Comanche County Airport (KMKN).

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 17:56:00 to 12-AUG-12 17:56:00 (CST-6)
Location: SAGINAW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported a wind gust of 60 mph.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:00:00 to 12-AUG-12 18:00:00 (CST-6)
Location: (FTW)MEACHAM ARPT FT
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A storm spotter reported street signs blown down and billboards ripped off.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 17:45:00 to 12-AUG-12 17:45:00 (CST-6)
Location: EAGLE MTN LAKE
Magnitude: 52.00 EG
Property damage: 210.00K
Crop damage: 0.00K
Reported by: Newspaper

Roof and dock damage was reported to two boat docks at the Lake Country Marina on the east side of Eagle Mountain Lake. The two boat docks broke free, and the metal roof of one of the docks was twisted. About 40 boats tied to the docks sustained at least minor damage. About 10 people were stranded on the docks and had to be rescued.

Thunderstorm Wind in JOHNSON, TEXAS
From 12-AUG-12 19:03:00 to 12-AUG-12 19:03:00 (CST-6)
Location: VENUS
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Metal buildings were reported damaged 3 miles Northwest of Venus, TX.

Thunderstorm Wind in TARRANT, TEXAS
From 12-AUG-12 18:10:00 to 12-AUG-12 18:10:00 (CST-6)
Location: HODGE
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported damage to a factory building on North Main Street. The awning at Maverick Fine Western Wear was knocked down. Other minor damage was reported in the Fort Worth Stockyards.

Thunderstorm Wind in JOHNSON, TEXAS
From 12-AUG-12 18:47:00 to 12-AUG-12 18:47:00 (CST-6)
Location: RETTA
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters reported roofs blown off several trailers.

Hail in COOKE, TEXAS
From 12-AUG-12 16:03:00 to 12-AUG-12 16:03:00 (CST-6)
Location: LINDSAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

One-inch diameter hail was reported.

Hail in COOKE, TEXAS
From 12-AUG-12 16:34:00 to 12-AUG-12 16:34:00 (CST-6)
Location: VALLEY VIEW
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Golf ball sized hail was reported by amateur radio.

Hail in COOKE, TEXAS
From 12-AUG-12 16:35:00 to 12-AUG-12 16:35:00 (CST-6)
Location: VALLEY VIEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

One-inch diameter hail was reported by amateur radio.