Tornado outbreak of April 3, 2012
Radar loop of storms affecting Dallas/Fort Worth during the outbreak
TypeTornado outbreak
DurationApril 3, 2012
Highest winds
Tornadoes
confirmed
21
Max. rating1EF3 tornado
Duration of
tornado outbreak2
6 hours, 27 minutes
Largest hail3.5 in (89 mm) near Forney
Fatalities0 fatalities, 29 injured
Damage≥$1 billion[1] (estimated)

1Most severe tornado damage; see Enhanced Fujita scale
2Time from first tornado to last tornado

A localized tornado outbreak affected primarily the Dallas–Fort Worth metroplex on April 3, 2012.[2] During the morning of April 3, a large low-pressure area and associated frontal boundaries tracked across the Southern United States. Initially, environmental conditions did not favor the development of tornadoes. However, an outflow boundary from an area of storms in Oklahoma moved southwards before stalling over the Dallas–Fort Worth area. This allowed the formation of individual supercells, which would produce numerous tornadoes in the region. Many of these tornadoes occurred in the afternoon and evening hours of the day. One of these tornadoes was an EF3 tornado which struck areas of Forney, Texas, damaging or destroying multiple homes and businesses; this tornado would be the strongest confirmed during the outbreak. However, the costliest tornado was of EF2 intensity, and struck the counties of Ellis and Dallas, causing roughly $400 million in damages and damaging or destroying hundreds of homes. The same tornado also injured 10 people, but did not cause any fatalities. Throughout the duration of the outbreak, there were 21 confirmed tornadoes, though 16 of them were rated EF0—the lowest rating on the Enhanced Fujita scale.

Along with the tornadoes, numerous hail and wind reports were received by the Storm Prediction Center (SPC) that day, though it is unclear which were directly associated with the storm complex. However, severe weather in Texas resulted in excess of $1 billion in damages, mostly due to the tornadoes. It was estimated that at least 1,100 homes in the metropolitan area were damaged in the outbreak, including at least 349 that were destroyed. Despite hitting heavily populated areas, however, no deaths were reported. However, a total of 29 injuries were confirmed.[3]

Meteorological synopsis

Satellite image of the low-pressure area and frontal supercells associated with the outbreak

A low pressure system and associated frontal boundaries tracked across the Southern Plains on April 3. The large-scale synoptics were marginal for tornadoes, hence only a slight risk of severe weather was issued by the Storm Prediction Center in Norman, Oklahoma, with large hail the primary threat and tornadoes and damaging winds secondary threats.[4] As a result of the initially perceived low risk, only a severe thunderstorm watch was initially issued for the region at 9:20 am CDT (1420 UTC).[5] Once the small-scale synoptics became more conducive for tornado activity, the watch was upgraded to a tornado watch for North Texas at 12:10 pm CDT (1720 UTC).[6]

What was initially believed to be a wind and hail event from reliable models and forecast unexpectedly developed into a locally significant tornado outbreak as a result of changing mesoscale situations, concentrated on the heavily populated Dallas–Fort Worth metroplex. That development was attributed to an outflow boundary from another area of storms farther north in Oklahoma that tracked southward across the Red River and into the Metroplex where it stalled just south of the Interstate 20 corridor in the southern suburbs, allowing discrete supercells to form along the boundary. The boundary increased low-level wind shear significantly due to easterly winds, allowing for tornadoes to develop. As a result, taking advantage of the highly unstable environment that became much more highly sheared than initially forecasted with high CAPE values, the storms became much more intense than forecasted and quickly became tornadic and intense, resulting in severe damage across the region in heavily populated areas. South of the boundary, shear was much more marginal and tornadoes did not develop.[7] Once the cells tracked eastward towards Louisiana, the atmosphere was much more stable and the cells rapidly weakened.

Confirmed tornadoes

Confirmed tornadoes by Enhanced Fujita rating
EFU EF0 EF1 EF2 EF3 EF4 EF5 Total
0 16 1 2 2 0 0 21
List of confirmed tornadoes – Tuesday, April 3, 2012[note 1]
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
EF1 N of Cleburne Johnson TX 32°21′N 97°24′W / 32.35°N 97.40°W / 32.35; -97.40 (Cleburne (Apr. 3, EF1)) 17:41–17:43 1.16 miles (1.87 km) 60 yd (55 m) Three manufactured homes were damaged, one of which lost its roof and an exterior wall. A horse trailer was overturned, a barn sustained roof damage, and two riding lawnmowers sustained damage. Damages totaled $60,000.[8]
EF2 Oak Leaf to Southern Dallas Ellis, Dallas TX 32°36′N 96°45′W / 32.60°N 96.75°W / 32.60; -96.75 (Lancaster (Apr. 3, EF2)) 18:00–18:35 13.7 miles (22.0 km) 200 yd (180 m) In Oak Leaf, minor tree and shingle damage occurred before the tornado struck Lancaster and the southern fringes of Dallas at high-end EF2 strength. Many homes in Lancaster sustained severe damage or were destroyed, some of which lost roofs and exterior walls. Vehicles were moved and damaged, trees were downed, an RV was destroyed, and fence boards were speared into homes. Three buildings were damaged at an apartment complex, one of which had its roof torn off. The Cedar Valley Christian Academy was also heavily damaged and lost an exterior wall. A news helicopter broadcast live video as the tornado struck a Schneider National terminal and lofted several semi-trailers high into the air. Over 50 semi-trailers were damaged or destroyed, one of which was thrown into a house. Sixty-four homes were destroyed, and 109 others were damaged. Ten people were injured, two seriously. Damage was $400 million.[9][10][11]
EF0 ENE of Burleson Johnson TX 32°32′N 97°17′W / 32.54°N 97.28°W / 32.54; -97.28 (Burleson (Apr. 3, EF0)) 18:08–18:09 0.27 miles (430 m) 50 yd (46 m) Brief touchdown over an open field caused no damage.
EF2 Kennedale to Arlington Tarrant TX 32°38′N 97°13′W / 32.63°N 97.22°W / 32.63; -97.22 (Kennedale (Apr. 3, EF2)) 18:21–18:40 6.4 miles (10.3 km) 150 yd (140 m) A damaging multiple-vortex tornado caused high-end EF2 damage in Kennedale and Arlington. Five manufactured homes were destroyed at the beginning of the path near the Texas Raceway. Several businesses in Kennedale sustained damage, including a storage facility and a warehouse building that had a large portion of its roof torn off and tossed onto a water tower. Many apartments and homes in this area were damaged, some severely. Crossing into Arlington, the tornado caused damage to numerous additional houses and apartment buildings. Loss of roofs and exterior walls occurred, and a few two story homes sustained total destruction of their top floors. A nursing home had a large portion of its roof torn off and sustained damage to exterior walls, and a church was also damaged. Many trees and power poles were snapped along the path. Eighteen homes were destroyed and 291 others were damaged. Eight injuries occurred, one of which was serious. Damage was $200 million.[12][13][14]
EF0 Eastern Dallas Dallas TX 32°47′N 96°41′W / 32.78°N 96.69°W / 32.78; -96.69 (Sayene (Apr. 3, EF0)) 18:54–18:55 0.09 miles (0.14 km) 25 yd (23 m) A brief tornado touched down near Skyline High School, damaging trees and the roof of one house.
EF0 Northern Grand Prairie Tarrant TX 32°46′N 97°04′W / 32.77°N 97.06°W / 32.77; -97.06 (Grand Prairie (Apr. 3, EF0)) 18:58–19:00 0.47 miles (0.76 km) 60 yd (55 m) This brief tornado touched down in the northern part of Grand Prairie, damaging the roofs of a few warehouse buildings and a strip mall. A few light poles and power poles were blown over as well.
EF0 Northwestern Irving Dallas TX 32°52′N 96°59′W / 32.86°N 96.98°W / 32.86; -96.98 (Irving (Apr. 3, EF0)) 19:08–19:13 1.31 miles (2.11 km) 30 yd (27 m) This tornado struck Townsell Elementary School, where HVAC units were torn off the roof and a gas line was ruptured. The roof of a Goodwill store was damaged, and a house sustained awning damage. Trees and fences were downed, power poles were bent over, and a road sign was blown over as well.
EF0 Coppell Dallas TX 32°57′N 96°59′W / 32.95°N 96.99°W / 32.95; -96.99 (Coppell (Apr. 3, EF0)) 19:23–19:28 2.02 miles (3.25 km) 75 yd (69 m) This tornado damaged a gas station awning and the roofs of several homes along a narrow, intermittent path through Coppell.
EF0 S of Denton Denton TX 33°10′N 97°08′W / 33.16°N 97.14°W / 33.16; -97.14 (Denton (Apr. 3, EF0)) 19:40–19:41 0.21 miles (0.34 km) 50 yd (46 m) Brief tornado touched down in an open field, causing no damage.
EF0 W of Cumby Hunt TX 33°07′17″N 95°53′48″W / 33.1215°N 95.8967°W / 33.1215; -95.8967 (Cumby (Apr. 3, EF0)) 20:20–20:21 0.3 miles (0.48 km) 25 yd (23 m) A brief tornado occurred over open country, causing no damage.
EF0 Mesquite Dallas TX 32°46′N 96°36′W / 32.77°N 96.60°W / 32.77; -96.60 (Mesquite (Apr. 3, EF0)) 20:22–20:24 0.28 miles (0.45 km) 30 yd (27 m) This brief tornado touched down near the Mesquite Rodeo Arena. Several trees and tree limbs were downed, and houses sustained minor roof damage. An automotive business collapse of a masonry exterior wall. Two people were injured.
EF0 SW of Sulphur Springs Hopkins TX 33°05′N 95°40′W / 33.08°N 95.66°W / 33.08; -95.66 (Sulphur Springs (Apr. 3, EF0)) 20:24–20:25 0.12 miles (0.19 km) 25 yd (23 m) This tornado remained over open country, causing no damage.
EF3 Forney Kaufman TX 32°45′N 96°28′W / 32.75°N 96.47°W / 32.75; -96.47 (Forney (Apr. 3, EF3)) 20:33–20:39 7.73 miles (12.44 km) 150 yd (140 m) This intense EF3 tornado caused major damage in Forney. At its initial touchdown point in downtown Forney, numerous trees were snapped and uprooted, the roof of a fire station was damaged, an outbuilding was destroyed, while other buildings sustained roof and window damage. A dry cleaning business suffered significant damage to its roof and signs. Several industrial buildings also sustained minor damage. The most intense damage occurred in the Diamond Creek subdivision, where several homes were completely destroyed and others sustained major structural damage. A few of these homes were nearly leveled, with only small portions of interior walls left intact. Vehicles were tossed and damaged in the parking lot at Crosby Elementary School, one of which was lofted 300 yards into a field. The school building itself sustained mainly roof damage. Seven people were injured, and damages amounted to $100 million.[15]
EF0 N of Sulphur Springs Hopkins TX 33°08′N 95°36′W / 33.13°N 95.60°W / 33.13; -95.60 (Sulphur Springs (Apr. 3, EF0)) 20:54–20:55 0.58 miles (0.93 km) 50 yd (46 m) Trees, power poles, and power lines were downed.
EF3 SE of Royse City Rockwall, Hunt TX 32°55′N 96°20′W / 32.91°N 96.33°W / 32.91; -96.33 (Royse City (Apr. 3, EF2)) 20:56–21:04 3.34 miles (5.38 km) 400 yd (370 m) A large EF3 wedge tornado moved through a subdivision near Royse City, severely damaging or destroying multiple homes. In the subdivision, a home sustained mid-range EF3 damage as all of its exterior walls collapsed. A cabinet factory building sustained major structural damage, and other industrial buildings and a gas station were also damaged. Large amounts of structural debris from this area was scattered long distances through fields. Barns and mobile homes were completely destroyed and vehicles were tossed, one of which was thrown into the back of a house. A few additional homes were also sustained major damage farther along the path, and vegetation and trees were defoliated and debarked in some areas. Eight homes were destroyed and 26 others were damaged. Three people were injured. Peak wind speeds were estimated at 150 mph.[16]
EF0 S of Greenville Hunt TX 33°02′N 96°08′W / 33.04°N 96.14°W / 33.04; -96.14 (Greenville (Apr. 3, EF0)) 21:27–21:29 0.57 miles (0.92 km) 50 yd (46 m) A brief tornado remained over open country and caused no damage.
EF0 E of Hagansport Franklin TX 33°21′N 95°08′W / 33.35°N 95.14°W / 33.35; -95.14 (Hagansport (Apr. 3, EF0)) 21:39–21:45 0.84 miles (1.35 km) 25 yd (23 m) This tornado uprooted trees near the Sulphur River.
EF0 S of Clarksville Red River TX 33°28′N 95°04′W / 33.46°N 95.06°W / 33.46; -95.06 (Clarksville (Apr. 3, EF0)) 21:41–21:45 1.41 miles (2.27 km) 25 yd (23 m) Several trees were snapped or uprooted along the path.
EF0 SW of De Kalb Bowie TX 33°26′N 94°43′W / 33.43°N 94.71°W / 33.43; -94.71 (De Kalb (Apr. 3, EF0)) 21:44–21:50 2.24 miles (3.60 km) 50 yd (46 m) Several trees were snapped or uprooted along the path.
EF0 NW of Winnsboro Hopkins TX 33°01′N 95°22′W / 33.01°N 95.36°W / 33.01; -95.36 (Winnsboro (Apr. 3, EF0)) 22:36–22:37 0.54 miles (0.87 km) 25 yd (23 m) Minor tree damage occurred along the path.
EF0 ESE of Rodessa Caddo LA 32°58′N 93°59′W / 32.97°N 93.98°W / 32.97; -93.98 (Rodessa (Apr. 3, EF0)) 00:08–00:13 3.08 miles (4.96 km) 50 yd (46 m) Several trees were snapped or uprooted, some of which fell on buildings. One outbuilding was directly damaged by the tornado.
Sources: SPC Storm Reports for 04/03/12, NWS Dallas/Fort Worth, NWS Shreveport, LA, NCDC Storm Events Database
  1. All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.

Aftermath

A home damaged by an EF3 tornado in Forney, Texas on April 3, 2012

The city of Kennedale was one of the first to declare itself a disaster area on April 3, 2012, just a few hours after one of the first tornados to hit the Dallas–Fort Worth metroplex area struck their town. Kennedale made the disaster declaration official on April 4, 2012.[17] Both mayors Bryan Lankhorst of Kennedale and Robert Cluck of Arlington signed disaster declarations for their cities.[18] These declarations paved the way for Texas Governor Rick Perry to declare Dallas, Kaufman, and Tarrant counties disaster areas on Thursday, April 5, 2012.[19]

See also

References

  1. Jeff Masters (May 11, 2012). "2nd billion-dollar weather disaster of 2012: April 3 severe weather in Texas". Weather Underground. Retrieved May 12, 2012.
  2. Jervis, Rick; Rice, Doyle (3 April 2012). "Officials assess damage after tornadoes pummel Dallas area". USA TODAY. Retrieved 3 April 2012.
  3. Staff, CNN Wire (5 April 2012). "Red Cross: 1,100 homes struck by Texas twisters". CNN. Retrieved 5 April 2012. {{cite news}}: |first1= has generic name (help)
  4. Corfidi, Steve; Cohen, Ariel (3 April 2012). "Apr 3, 2012 1300 UTC Day 1 Convective Outlook". Storm Prediction Center. Retrieved 4 April 2012.
  5. Mead, Corey (3 April 2012). "Severe Thunderstorm Watch 132". Storm Prediction Center. Retrieved 4 April 2012.
  6. Mead, Corey (3 April 2012). "Tornado Watch 133". Storm Prediction Center. Retrieved 4 April 2012.
  7. National Weather Service Fort Worth (4 April 2012). "Area Forecast Discussion". Archived from the original on 20 May 2014. Retrieved 4 April 2012.
  8. Webmaster, FWD (5 April 2012). "April 3rd 2012 Severe Weather Outbreak:Johnson County Survey". Retrieved 5 April 2012.
  9. Lancaster/Dallas Tornado, Rated EF-2. National Weather Service. 4 April 2012. Retrieved 4 April 2012.
  10. Paul J. Webber (April 4, 2012). "Tornado-wrecked Dallas begins assessing damage". Associated Press. Archived from the original on April 6, 2012. Retrieved April 4, 2012.
  11. "Storm Events Database". NOAA. Retrieved February 13, 2022.
  12. WFAA (3 April 2012). "Severe weather blog: North Texas cleanup under way". WFAA News 8 HD (Interview). Dallas–Fort Worth metroplex: American Broadcasting Company. Archived from the original on 5 April 2012. Retrieved 4 April 2012.
  13. Kennedale/Arlington Tornado, Rated EF-2. National Weather Service. 4 April 2012. Retrieved 4 April 2012.
  14. "Storm Events Database". NOAA. Retrieved February 13, 2022.
  15. Forney Tornado, Rated EF-3. National Weather Service. 4 April 2012. Retrieved 4 April 2012.
  16. "April 3rd 2012 Severe Weather Outbreak:Rockwall/Hunt County Survey". National Weather Service. 4 April 2012. Retrieved 5 April 2012.
  17. Cirmo, Amethyst (4 April 2012). "Press Release:KENNEDALE - DECLARATION OF DISASTER. CLEANUP UNDERWAY" (PDF). Fort Worth Star-Telegram. Retrieved 6 April 2012.
  18. Schrock, Susan; Vaughn, Chris (4 April 2012). "Arlington/Kennedale tornado traveled 4.6 miles, weather service says". Fort Worth Star-Telegram. Retrieved 6 April 2012.
  19. "Disaster declaration for 3 counties" (Interview). Austin, Texas: LIN Television of Texas. 5 April 2012. Retrieved 5 April 2012 via KXAN.
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