Tornadoes · United States · Texas · 2015
EF0 tornado, Belding to Coyanosa, Texas, May 27, 2015
From Belding to Coyanosa, this EF0 tornado ran 2.2 miles across Pecos County on May 27, 2015, touching down at 7:35 PM CDT and reaching 100 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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- May 27, 2015
- Touchdown
- 7:35 PM CDT (00:35 UTC)
- Lifted
- 7:39 PM CDT (00:39 UTC)
- On the ground
- 4 minutes
- Path length
- 2.2 miles (3.5 km)
- Path width
- 100 yards (91 m)
- Deaths
- 0
- Injuries
- 0
- County
- Pecos County
- Touchdown point
- 31.005, -103.282
- Lift-off point
- 31.023, -103.253
- Record number
- 1505271835-01
What the Weather Service recorded
An upper level trough was over the western United States with West Texas under southwest winds aloft. A developing surface trough and an upper level disturbance moving over the area provided enough lift for storms to develop across West Texas. High instability and strong shear contributed to thunderstorms that produced large hail, tornadoes, and flash flooding.
A thunderstorm moved across Pecos County and produced a brief tornado about 22 miles northwest of Belding. The time that the tornado was on the ground is an estimate as well as the distance traveled and the path width. There was no damage reported so the tornado was rated as an EF-0.
A thunderstorm moved across Pecos County and produced a tornado about 20 miles northwest of Belding. It was described as a rain-wrapped tornado in a rural area. The time on the ground, path length, and path width were estimated. There was no damage reported so the tornado was rated as an EF-0.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
6 minutes of warning. NWS MAF issued a tornado warning for this county at 00:29 UTC, 6 minutes before the tornado touched down, in force until 01:00 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 22:49 UTC | 23:30 UTC | Severe Thunderstorm Warning | MAF |
| 23:23 UTC | 00:30 UTC | Severe Thunderstorm Warning | MAF |
| 00:29 UTC | 01:00 UTC | Tornado Warning | MAF |
| 00:59 UTC | 01:45 UTC | Tornado Warning | MAF |
| 01:35 UTC | 02:30 UTC | Severe Thunderstorm Warning | MAF |
| 01:45 UTC | 02:45 UTC | Severe Thunderstorm Warning | MAF |
| 01:55 UTC | 02:16 UTC | Tornado Warning | MAF |
| 02:30 UTC | 06:30 UTC | Flash Flood Warning | MAF |
| 02:34 UTC | 03:30 UTC | Severe Thunderstorm Warning | MAF |
| 02:41 UTC | 03:22 UTC | Severe Thunderstorm Warning | MAF |
| 17:45 UTC | 01:00 UTC | Tornado Watch | MAF |
| 18:22 UTC | 19:15 UTC | Severe Thunderstorm Warning | MAF |
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 Marginal Risk. The outlook in force was issued at 19:49 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
0.6 hours before the tornado, 145 km from the path. May 28, 2015.
- Mixed-layer CAPE
- 1562 J/kg
- Mixed-layer CIN
- -36 J/kg
- Surface CAPE
- 3005 J/kg
- Mixed-layer LCL
- 2097 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
- 0-3 km lapse rate
- 8.4 K/km
Midland Regional, TX (KMAF), 12:00Z
11.4 hours after it, 145 km from the path. May 28, 2015.
- Mixed-layer CAPE
- 2845 J/kg
- Mixed-layer CIN
- -77 J/kg
- Surface CAPE
- 3369 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
- 0-3 km lapse rate
- 5.3 K/km
The surface observations
Fort Stockton (FST), 35 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 22:53 UTC | 90 | 60 | 120° 18 kt | 29 | 1013.2 | |
| 23:53 UTC | 85 | 61 | 130° 23 kt | 30 | 1012.5 | |
| 00:29 UTC | 83 | 61 | 130° 26 kt | 32 | 1012.5 | VCTS |
| 00:53 UTC | 82 | 62 | 130° 19 kt | 33 | 1012.5 | VCTS |
| 01:10 UTC | 82 | 63 | 130° 21 kt | 34 | 1012.2 | TS |
| 01:53 UTC | 75 | 67 | 100° 15 kt | 32 | 1014.9 | TSRA |
| 02:06 UTC | 74 | 68 | 260° 8 kt | 1017.6 | +TSRA | |
| 02:20 UTC | 72 | 68 | 200° 19 kt | 29 | 1018.3 | +TSRA BR |
| 02:23 UTC | 70 | 67 | 180° 24 kt | 29 | 1018.6 | +TSRA BR |
| 02:29 UTC | 69 | 67 | 150° 17 kt | 31 | 1018.3 | +TSRA BR |
| 02:32 UTC | 69 | 67 | 130° 16 kt | 31 | 1017.6 | +TSRA BR |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Midland/Odessa radar (KMAF), 145 km away, was scanning. The volume nearest the touchdown began at 00:35 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 00:30 UTC | HAIL 4 | 22 Nw Fort Stockton | Pecos, TX | IN ADDITION... POSSIBLE TORNADO. |
| 00:35 UTC | TORNADO | 22 Nw Belding | Pecos, TX | REPORT OF A BRIEF TORNADO. ALSO 3 INCH HAIL. |
| 00:50 UTC | TORNADO | 20 Nw Belding | Pecos, TX | RAIN-WRAPPED TORNADO OVER RURAL AREA |
| 01:05 UTC | HAIL 2.75 | 25 Wnw Fort Stockton | Pecos, TX | |
| 01:45 UTC | HAIL 1.75 | Nw Belding | Pecos, TX | QUARTER TO GOLF BALL SIZE HAIL AT THE FIRESTONE TEST TRACK. |
| 02:10 UTC | FUNNEL CLOUD | 1 E Fort Stockton | Pecos, TX | LOW ROTATING CLOUDS MOVING INTO THE STORM. |
| 02:10 UTC | HAIL 1 | 8 Nnw Belding | Pecos, TX | |
| 02:25 UTC | HAIL 1 | 1 Sw Fort Stockton | Pecos, TX | |
| 02:50 UTC | FLASH FLOOD | Fort Stockton | Pecos, TX | 3 FEET OF WATER AT THE FLOOD GAUGE NEAR ROONEY PARK |
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 May 27, 2015
18 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| May 27 | 11:46 AM CDT | EF0 | Blanco, TX | 0.3 | 10 | |||
| May 27 | 1:10 PM MDT | EF0 | Yuma, CO | 0.5 | 25 | |||
| May 27 | 3:00 PM CDT | EF0 | Logan, KS | 2.2 | 25 | |||
| May 27 | 3:03 PM CDT | EF0 | Lane, KS | 0.3 | 50 | |||
| May 27 | 4:02 PM CDT | EF0 | Lane, KS | 1.5 | 100 | |||
| May 27 | 4:21 PM CDT | EF0 | Lane, KS | 0.8 | 75 | |||
| May 27 | 4:24 PM CDT | EF0 | Lane, KS | 1.4 | 100 | |||
| May 27 | 4:58 PM CDT | EF2 | Hemphill, TX | 1.4 | 1,200 | 3 | ||
| May 27 | 5:10 PM CDT | EF0 | Haskell, KS | 0.5 | 75 | |||
| May 27 | 5:14 PM CDT | EF1 | Haskell, KS | 2.4 | 150 | $1.0 million | ||
| May 27 | 5:45 PM CDT | EF0 | Lane, KS | 5.0 | 125 | |||
| May 27 | 5:54 PM CDT | EF0 | Finney, KS | 3.4 | 200 | |||
| May 27 | 6:02 PM CDT | EF1 | Hemphill, TX | 1.1 | 600 | |||
| May 27 | 6:05 PM CDT | EF0 | Hemphill, TX | 0.5 | 400 | |||
| May 27 | 6:05 PM CDT | EF1 | Hemphill, TX | 1.1 | 600 | |||
| May 27 | 6:14 PM CDT | EF0 | Finney, KS | 2.0 | 100 | |||
| May 27 | 7:33 PM CDT | EF0 | Gray, KS | 1.0 | 75 | |||
| May 27 | 7:50 PM CDT | EF0 | Pecos, TX | 4.1 | 200 |
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.