Tornadoes · United States · Texas · 2016

EF0 tornado, Hermleigh, Texas, April 16, 2016

This EF0 tornado ran 0.9 miles across Scurry County on April 16, 2016, touching down at 7:50 PM CDT and reaching 300 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
April 16, 2016
Touchdown
7:50 PM CDT (00:50 UTC)
Lifted
7:52 PM CDT (00:52 UTC)
On the ground
2 minutes
Path length
0.9 miles (1.5 km)
Path width
300 yards (274 m)
Deaths
0
Injuries
0
County
Scurry County
Touchdown point
32.599, -100.787
Lift-off point
32.607, -100.774
Record number
1604161850-01

What the Weather Service recorded

A large cut off low was over New Mexico and Colorado. A dryline was present across the Permian Basin with good moisture and instability along and east of this line. Wind shear values and mid-level lapse rates were impressive, and strong upper level winds were beginning to move over the region. These conditions contributed to severe storms with large hail, damaging winds, and a tornado for the Western Low Rolling Plains and parts of the Permian Basin.

A thunderstorm moved across Scurry County and produced a tornado three miles southwest of Hermleigh. A survey was conducted for this tornado by National Weather Service meteorologists, and no damage was seen during the survey so the tornado was rated as an EF-0. The path width and length were estimated since there was no damage path.

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

The warnings

0 minutes of warning. NWS MAF issued a tornado warning for this county at 00:50 UTC, 0 minutes before the tornado touched down, in force until 01:15 UTC.

The county was under a tornado watch, issued at 21:49 UTC and running to 05:00 UTC.

Issued (UTC)ExpiredProductOffice
21:49 UTC05:00 UTCTornado WatchMAF
22:00 UTC22:30 UTCSevere Thunderstorm WarningMAF
23:21 UTC00:15 UTCSevere Thunderstorm WarningMAF
23:43 UTC00:30 UTCTornado WarningMAF
00:00 UTC08:23 UTCFlash Flood WatchMAF
00:33 UTC01:30 UTCSevere Thunderstorm WarningMAF
00:50 UTC01:15 UTCTornado WarningMAF
01:41 UTC02:24 UTCSevere Thunderstorm WarningMAF
01:57 UTC06:00 UTCFlash Flood 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, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:55 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

0.8 hours before the tornado, 152 km from the path. April 17, 2016.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2016-04-17Temperature 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 -88558, lifted condensation level 3416 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 2016-04-17The 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 63 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
0 J/kg
Mixed-layer CIN
-88558 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
3416 m above ground
0-6 km bulk shear
63 kt
0-1 km bulk shear
7 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
9.9 K/km

Open this sounding in Storm Lab

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

11.2 hours after it, 152 km from the path. April 17, 2016.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2016-04-17Temperature 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 -90791, lifted condensation level 3152 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 2016-04-17The 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 -21 square meters per square second, 0 to 6 km bulk shear 67 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
0 J/kg
Mixed-layer CIN
-90791 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
3152 m above ground
0-6 km bulk shear
67 kt
0-1 km bulk shear
5 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
6.6 K/km

Open this sounding in Storm Lab

The radar

The San Angelo radar (KSJT), 140 km away, was scanning. The volume nearest the touchdown began at 00:47 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
22:00 UTCHAIL 17 N LoraineMitchell, TX
22:30 UTCHAIL 0.758 Nw RoscoeFisher, TX
22:47 UTCFUNNEL CLOUD6 N RoscoeFisher, TX
23:30 UTCHAIL 2LongworthFisher, TX
00:20 UTCHAIL 11 W FluvannaScurry, TX
00:50 UTCTORNADO3 Sw HermleighScurry, TXUNKNOWN INTENSITY
01:00 UTCHAIL 14 Se DunnScurry, TX
01:01 UTCHAIL 1.755 Nw Colorado CityMitchell, TXREPORTED AT THE COLORADO CITY AIRPORT
01:03 UTCHAIL 1.7513 Se SnyderScurry, TXREPORTED AT THE INTERSECTION OF COUNTY ROAD 465 AND FM1606.
02:40 UTCFLASH FLOOD8 Sw RobyFisher, TXEIGHT TO 10 INCHES OF WATER WAS OVER THE ROAD ON FM419.

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

This ground now

The live radar over the trackEvery 2016 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of April 16, 2016

5 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 164:55 PM CDTEF0Kent, TX0.140
April 164:58 PM CDTEF0Mitchell, TX0.9250
April 165:50 PM CDTEF0Dickens, TX0.8150
April 166:05 PM CDTEF0Dickens, TX0.050
April 166:24 PM CDTEF0Fisher, TX1.250

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.