EF0 tornado, San Angelo to Goodfellow Afb, Texas, June 11, 2014

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.

Rating

EF0

Date

June 11, 2014

Touchdown

8:20 PM CDT (01:20 UTC)

Lifted

8:21 PM CDT (01:21 UTC)

On the ground

1 minutes

Path length

0.7 miles (1.1 km)

Path width

50 yards (46 m)

Deaths

0

Injuries

0

County

Tom Green County

Touchdown point

31.490, -100.390

Lift-off point

31.480, -100.390

Record number

1406111920-01

41 damage points were recorded along this path by NWS SJT, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 98 mph.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

A surface trough and dryline combined with a very unstable airmass and produced bow echo type severe thunderstorms across West Central Texas. A damaging macroburst formed as the storms interacted with a hot and dry sub cloud layer. The downburst winds extended from 1 mile northwest of Carlsbad to 3 miles east northeast of Wall and damaged the north half of the City of San Angelo with thunderstorm winds gusting to around 95 mph. A couple of weak tornadoes formed on the leading edge of the damaging winds or the bow echo. The downburst was approximately 7 miles wide by 22 miles long. A severe thunderstorm with damaging thunderstorm winds also produced a haboob or a wall of dust as it impacted Rotan.

The twister damaged roof coverings, road signs, fences and trees. There was evidence of cyclonic circulation superimposed on the large scale damaging winds that affected much of northern San Angelo. The wind speed was estimated to be near 85 mph.

A tornado was observed and videotaped just north of FM 388 and just west of Loop 306. The tornado moved east southeast across Loop 306 before dissipating.

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

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 severe thunderstorm watch, issued at 21:02 UTC and running to 04:00 UTC.

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 Storm Prediction Center had this point in a Slight Risk. The outlook in force was issued at 01:01 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 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.

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

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

The live radar over the trackEvery 2014 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

8 more were confirmed in the United States that day.

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.

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