Tornadoes · United States · Texas · 2012

EF2 tornado, Gardendale, Texas, March 18, 2012

This EF2 tornado ran 1.0 miles across Ector County on March 18, 2012, touching down at 12:28 AM CDT and reaching 40 yards wide. It killed nobody and injured 3, and did $1.0 million of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mphthis tornado

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF2
Date
March 18, 2012
Touchdown
12:28 AM CDT (05:28 UTC)
Lifted
12:30 AM CDT (05:30 UTC)
On the ground
2 minutes
Path length
1.0 miles (1.6 km)
Path width
40 yards (37 m)
Deaths
0
Injuries
3
Property damage
$1.0 million
County
Ector County
Touchdown point
32.028, -102.339
Lift-off point
32.036, -102.328
Record number
1203182328-01

What the Weather Service recorded

A big, upper level low was just west of the area near the four corners region of the United States. There was a surface trough across Southeast New Mexico and far West Texas with a retreating dryline across the Permian Basin and the lower Trans Pecos. A Pacific front moved through the area after sunset. The collision of the front with the dryline along with good shear and instability provided a ripe environment for severe thunderstorm development. A line of convection developed, and the storms went on to produce a tornado near Gardendale, TX and severe hail across the Permian Basin.

A line of severe thunderstorms moved into Ector County around 11:20 PM CDT March 18th and progressed eastward. At 12:28 AM CDT March 19th, a tornado touched down in the Gardendale community and remained on the ground for two minutes. This tornado produced damage along County Road 30 (Goldenrod Drive) primarily between Chinaberry Avenue and Alfalfa Avenue. As the tornado developed, it moved just south of an RV Park located near the intersection of County Road 30 and China Berry Ave. This resulted in a large camper being toppled by severe northwest winds flowing into the tornado. One minor injury was noted at this location. As the tornado intensified and progressed northeastward, strong inflow winds from the south resulted in a cinder block fence being blown over to the north. Finally, as the tornado crossed County Road 30 (Goldenrod Drive), it reached its peak intensity. This resulted in significant damage to a residential home, along with a 20' x 30' travel trailer and a barn being destroyed. Widespread damage was noted in this area, which also served as a collection point for a great amount of debris from other locations upwind back to the southwest. South of County Road 30, power poles with broken cross members were noted. This was indicative of EF1 tornado damage. However, the tornado intensified after crossing to the north side of County Road 30 (Goldenrod Drive). There was a home that shifted slightly off its foundation. Also, there was significant loss of roof decking and major shingle loss. Some small pieces of debris became projectiles, sticking into the walls of the home. Based on this information, winds for this event were estimated to be 90-110 mph. The Gardendale tornado at its most intense - north of County Road 30 - was rated as a low end EF-2 tornado.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

The county was under a severe thunderstorm watch, issued at 03:50 UTC and running to 10:00 UTC.

Issued (UTC)ExpiredProductOffice
18:00 UTC02:00 UTCRed Flag WarningMAF
03:29 UTC04:30 UTCSevere Thunderstorm WarningMAF
03:50 UTC10:00 UTCSevere Thunderstorm WatchMAF
04:27 UTC05:30 UTCSevere Thunderstorm WarningMAF
04:47 UTC07:45 UTCFlood AdvisoryMAF

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 00:59 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Midland Regional, TX (KMAF), 00:00Z

5.5 hours before the tornado, 16 km from the path. March 19, 2012.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2012-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 786 joules per kilogram, CIN -48, lifted condensation level 2412 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Midland Regional, TX at 00:00Z on 2012-03-19The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 112 square meters per square second, 0 to 6 km bulk shear 42 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
786 J/kg
Mixed-layer CIN
-48 J/kg
Surface CAPE
1364 J/kg
Mixed-layer LCL
2412 m above ground
0-6 km bulk shear
42 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.7
0-3 km lapse rate
9.4 K/km

Open this sounding in Storm Lab

Midland Regional, TX (KMAF), 12:00Z

6.5 hours after it, 16 km from the path. March 19, 2012.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2012-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -84955, lifted condensation level 2079 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Midland Regional, TX at 12:00Z on 2012-03-19The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 128 square meters per square second, 0 to 6 km bulk shear 68 knots.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
-84955 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
2079 m above ground
0-6 km bulk shear
68 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
474 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The surface observations

Odessa-Schlemeyer Field (Was E02) (ODO), 13 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
03:29 UTC69.860.8160° 21 kt341005.1
03:53 UTC6860150° 24 kt321004.7
04:11 UTC6860.8160° 24 kt331004.4
04:51 UTC6860.8170° 21 kt321004.4TS
04:53 UTC6860160° 23 kt321004.4TS
05:32 UTC64.453.6220° 13 kt361005.1-TSRA
05:43 UTC60.851.8220° 9 kt1005.1TSRA
05:53 UTC6348220° 11 kt181005.4TS HZ
06:53 UTC6148200° 9 kt1005.8TS HZ
07:14 UTC60.848.2210° 7 kt1006.1TS HZ

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Midland/Odessa radar (KMAF), 17 km away, was scanning. The volume nearest the touchdown began at 05:30 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
05:28 UTCTORNADO2 Ene GardendaleEctor, TX*** 3 INJ *** TORNADO TOUCHED DOWN APPROXIMATELY 2 MILES ENE OF GARDENDALE AND TRANSLATED NE FOR APPROXIMATELY 1 MILE. MAXIMUM WIDTH APPROXIMATELY 50 YARDS. A BARN...A TRAVEL TRAILER...AND METAL OUTBUILDINGS WERE DESTROY
05:30 UTCTSTM WND DMGGardendaleEctor, TX*** 2 INJ *** TRAILER HOME FLIPPED OVER
06:50 UTCHAIL 2LenorahMartin, TXPEA SIZE TO 2 INCHES COVERING THE GROUND.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2012 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of March 18, 2012

10 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 186:50 PM CDTEF0Greer, OK3.9150
March 187:10 PM CDTEF0Greer, OK0.150
March 187:27 PM CDTEF0Greer, OK1.475
March 187:37 PM CDTEF0Beckham, OK1.075
March 189:10 PM CDTEF3Lincoln, NE6.71002$500,000
March 189:13 PM CDTEF1Lincoln, NE1.51501$250,000
March 189:14 PM CDTEF3Lincoln, NE1.71002$750,000
March 189:18 PM CDTEF2Lincoln, NE1.750$200,000
March 189:39 PM CDTEF0McPherson, NE5.320$100,000
March 189:19 PM MDTEF0Cherry, NE0.120

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.