Tornadoes · United States · Texas · 2020

EF0 tornado, Coyanosa to Imperial Res, Texas, May 13, 2020

From Coyanosa to Imperial Res, this EF0 tornado ran 0.8 miles across Pecos County on May 13, 2020, touching down at 4:30 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
May 13, 2020
Touchdown
4:30 PM CDT (21:30 UTC)
Lifted
4:32 PM CDT (21:32 UTC)
On the ground
2 minutes
Path length
0.8 miles (1.3 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Pecos County
Touchdown point
31.170, -102.865
Lift-off point
31.179, -102.855
Record number
2005131530-01

What the Weather Service recorded

An upper level disturbance moved over West Texas. There was a dryline present near the West Texas/eastern New Mexico border. Strong heating and instability as well as plentiful moisture were in place across West Texas. These conditions resulted in thunderstorms that produced large hail and a landspout tornado across portions of West Texas.

A thunderstorm moved across Pecos County and produced a landspout tornado eight miles east of Coyanosa. The time and location of the tornado were estimated by radar. No damage was reported.

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 20:27 UTC and running to 02:09 UTC.

Issued (UTC)ExpiredProductOffice
20:27 UTC02:09 UTCSevere Thunderstorm WatchMAF
20:44 UTC21:45 UTCSevere Thunderstorm WarningMAF
21:35 UTC00:30 UTCFlash Flood WarningMAF
21:44 UTC22:45 UTCSevere Thunderstorm WarningMAF
22:39 UTC23:45 UTCSevere Thunderstorm WarningMAF
23:58 UTC00:45 UTCSevere Thunderstorm WarningMAF
00:44 UTC01:30 UTCSevere Thunderstorm WarningMAF

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. The outlook in force was issued at 20:00 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), 12:00Z

9.5 hours before the tornado, 107 km from the path. May 13, 2020.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2020-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1264 joules per kilogram, CIN -270, lifted condensation level 1118 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 12:00Z on 2020-05-13The 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 85 square meters per square second, 0 to 6 km bulk shear 15 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
1264 J/kg
Mixed-layer CIN
-270 J/kg
Surface CAPE
1651 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
15 kt
0-1 km bulk shear
22 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

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

2.5 hours after it, 107 km from the path. May 14, 2020.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2020-05-14Temperature 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 -71413, lifted condensation level 3243 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 00:00Z on 2020-05-14The 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 20 square meters per square second, 0 to 6 km bulk shear 31 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
0 J/kg
Mixed-layer CIN
-71413 J/kg
Surface CAPE
2 J/kg
Mixed-layer LCL
3243 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
7 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
224 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
8.2 K/km

Open this sounding in Storm Lab

The surface observations

Fort Stockton (FST), 30 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:30 UTC220° 18 kt381011.2
19:35 UTC220° 14 kt1011.2
19:40 UTC220° 14 kt221011.2
19:45 UTC240° 10 kt1010.8
19:50 UTC230° 11 kt171010.8
19:53 UTC8853240° 12 kt171010.8
19:55 UTC220° 11 kt1010.8
20:00 UTC230° 11 kt1010.5
20:05 UTC210° 14 kt191010.8
20:10 UTC190° 11 kt181010.5
20:15 UTC210° 15 kt1010.5
20:20 UTC220° 14 kt1010.5
20:25 UTC190° 13 kt181010.5
20:30 UTC190° 13 kt1010.2
20:35 UTC190° 15 kt1010.2
20:40 UTC 13 kt1010.2
20:43 UTC8655190° 12 kt1010.2VCTS
20:45 UTC190° 11 kt171010.2
20:50 UTC84.255.4180° 12 kt211010.2-TSRA
20:53 UTC8456210° 11 kt211010.2-TSRA
20:55 UTC0° 0 kt1010.2-RA
21:00 UTC 1009.5-RA
21:05 UTC 11 kt1009.8-RA
21:10 UTC250° 9 kt141009.8-RA
21:15 UTC230° 9 kt1010.2-RA
21:20 UTC290° 5 kt1009.5-RA
21:25 UTC300° 10 kt171009.8-RA
21:30 UTC280° 19 kt1010.5-RA
21:35 UTC 16 kt1010.8-RA
21:40 UTC290° 8 kt1010.2RA
21:42 UTC6859280° 7 kt1009.8+TSRA
21:45 UTC 9 kt1010.2+RA
21:50 UTC260° 11 kt1010.2-RA
21:51 UTC69.860.8270° 11 kt1010.2-TSRA
21:53 UTC7158280° 8 kt1010.2-TSRA
21:55 UTC 5 kt1009.8-RA
22:00 UTC 9 kt1010.2-RA
22:05 UTC 11 kt1010.2RA
22:09 UTC7161 3 kt231009.5VCTS +RA
22:10 UTC150° 2 kt1009.5RA
22:15 UTC 1009.1-RA
22:15 UTC7262 1009.1-TSRA
22:20 UTC140° 7 kt1008.5-RA
22:25 UTC150° 7 kt1008.1-RA
22:30 UTC150° 7 kt1008.1-RA
22:32 UTC7661190° 10 kt1008.5-RA
22:35 UTC190° 11 kt171008.8
22:40 UTC150° 10 kt151008.8
22:45 UTC 16 kt221008.5
22:50 UTC130° 13 kt1008.5
22:53 UTC7259130° 9 kt231008.5
22:55 UTC140° 11 kt1008.5
23:00 UTC140° 11 kt211008.8
23:05 UTC130° 14 kt1008.5
23:10 UTC130° 11 kt1008.5
23:15 UTC130° 13 kt1008.8
23:20 UTC 14 kt211008.8
23:25 UTC 11 kt1009.1

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

The radar

The Midland/Odessa radar (KMAF), 107 km away, was scanning. The volume nearest the touchdown began at 21:29 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
21:30 UTCTORNADO8 E CoyanosaPecos, TXVIDEO OF LANDSPOUT TORNADO. TIME AND LOCATION ESTIMATED BY RADAR.

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

This ground now

The live radar over the trackEvery 2020 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

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.