Tornadoes · United States · Texas · 2015

EF0 tornado, Hereford, Texas, June 12, 2015

This EF0 tornado ran 0.2 miles across Deaf Smith County on June 12, 2015, touching down at 3:18 PM CDT and reaching 50 yards wide. It killed nobody.

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 mphthis tornado

    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 mph

    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
EF0
Date
June 12, 2015
Touchdown
3:18 PM CDT (20:18 UTC)
Lifted
3:21 PM CDT (20:21 UTC)
On the ground
3 minutes
Path length
0.2 miles (0.3 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Deaf Smith County
Touchdown point
34.760, -102.520
Lift-off point
34.760, -102.520
Record number
1506121418-01

What the Weather Service recorded

Thunderstorms formed in the southwest portion of the Texas Panhandle during the afternoon and moved east across the southern Texas Panhandle through early evening. A brief tornado was reported in the extreme southern portion of rural Deaf Smith County along with quarter size hail. Quarter size hail also occurred just south of Claude in Armstrong County. Heavy rainfall in Collingsworth County resulted in minor flooding along Highway 83.

Several reports of a brief tornado were received from emergency management, storm chasers and the public just west of Farm to Market 1057 near County Road 2. No damage was reported and so the tornado was rated EF-0. The indicated path width and length are estimates. A storm survey was not conducted.

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. One was issued for the county at another hour that day.

The county was under a tornado watch, issued at 19:51 UTC and running to 23:19 UTC.

Issued (UTC)ExpiredProductOffice
19:51 UTC23:19 UTCTornado WatchAMA
20:21 UTC21:15 UTCSevere Thunderstorm WarningAMA
20:23 UTC20:40 UTCTornado WarningAMA

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 Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 20:01 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.

Amarillo Airport, TX (KAMA), 12:00Z

8.3 hours before the tornado, 91 km from the path. June 12, 2015.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2015-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 153 joules per kilogram, CIN -247, lifted condensation level 1122 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, Amarillo Airport, TX at 12:00Z on 2015-06-12The 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 -81 square meters per square second, 0 to 6 km bulk shear 47 knots.193958Sfc1 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
153 J/kg
Mixed-layer CIN
-247 J/kg
Surface CAPE
512 J/kg
Mixed-layer LCL
1122 m above ground
0-6 km bulk shear
47 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
-39 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

Amarillo Airport, TX (KAMA), 00:00Z

3.7 hours after it, 91 km from the path. June 13, 2015.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2015-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 76 joules per kilogram, CIN -142, lifted condensation level 817 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, Amarillo Airport, TX at 00:00Z on 2015-06-13The 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 140 square meters per square second, 0 to 6 km bulk shear 34 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
76 J/kg
Mixed-layer CIN
-142 J/kg
Surface CAPE
851 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
34 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The radar

The Amarillo radar (KAMA), 91 km away, was scanning. The volume nearest the touchdown began at 20:18 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
20:20 UTCTORNADO8 Wsw HerefordDeaf Smith, TXSEVERAL REPORTS OF A BRIEF TORNADO BETWEEN 315 PM AND 325 PM FROM EMERGENCY MANAGEMENT...STORM CHASERS...AND THE PUBLIC JUST WEST OF FM1057 NEAR COUNTY ROAD 2 IN EXTREME SOUTH CENTRAL DEAF SMITH COUNTY.
20:20 UTCTORNADO8 Wsw HerefordDeaf Smith, TXSEVERE REPORTS OF A BRIEF TORNADO BETWEEN 315 PM AND 325 PM FROM EMERGENCY MANAGEMENT...STORM CHASERS...AND THE PUBLIC JUST WEST OF FM1057 NEAR COUNTY ROAD 2 IN EXTREME SOUTH CENTRAL DEAF SMITH COUNTY.
20:43 UTCHAIL 15 S HerefordDeaf Smith, TX
21:35 UTCTSTM WND GST 602 Ne DimmittCastro, TX
21:41 UTCHEAVY RAIN 22 N DimmittCastro, TX

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

This ground now

The live radar over the trackEvery 2015 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of June 12, 2015

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 123:25 PM CDTEF0Labette, KS1.050
June 126:34 PM CDTEF0Gaines, TX0.5100

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.