Tornadoes · United States · Texas · 2017

EF0 tornado, Mansfield, Texas, January 15, 2017

This EF0 tornado ran 3.1 miles across Johnson and Tarrant counties on January 15, 2017, touching down at 8:11 PM CST and reaching 40 yards wide. It killed nobody, and did $150,000 of property damage.

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
January 15, 2017
Touchdown
8:11 PM CST (02:11 UTC)
Lifted
8:14 PM CST (02:14 UTC)
On the ground
3 minutes
Path length
3.1 miles (4.9 km)
Path width
40 yards (37 m)
Deaths
0
Injuries
0
Property damage
$150,000
Counties
Johnson and Tarrant counties
Touchdown point
32.520, -97.120
Lift-off point
32.560, -97.100
Record number
1701152011-01

The damage survey

8 damage points were recorded along this path by NWS FWD, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.

  • fence damage. very little shingle damage

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

What the Weather Service recorded

Tornadoes occurred. Read the title.

A National Weather Service damage survey crew found evidence of a small tornado near the Johnson/Tarrant County line. The tornado began near Lone Star Road and US 287 in the far southern portion of the City of Mansfield. The tornado did minor damage to four businesses, damaging overhead doors on metal buildings. One manufactured home suffered roof damage in Johnson County, while one barn was destroyed as the tornado moved into far southern Tarrant County.

A National Weather Service damage survey crew found evidence of a small tornado near the Johnson/Tarrant County line. The tornado began near Lone Star Road and US 287 in the far southern portion of the City of Mansfield. The tornado did minor damage to four businesses, damaging overhead doors on metal buildings. One manufactured home suffered roof damage in Johnson County, while one barn was destroyed as the tornado moved into far southern Tarrant County.

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

The warnings

26 minutes of warning. NWS FWD issued a tornado warning for this county at 01:45 UTC, 26 minutes before the tornado touched down, in force until 02:15 UTC.

The county was under a tornado watch, issued at 00:00 UTC and running to 04:12 UTC.

Issued (UTC)ExpiredProductOffice
00:00 UTC04:12 UTCTornado WatchFWD
00:14 UTC02:15 UTCFlood AdvisoryFWD
00:53 UTC01:30 UTCTornado WarningFWD
01:23 UTC02:15 UTCSevere Thunderstorm WarningFWD
01:45 UTC02:15 UTCTornado WarningFWD
01:50 UTC02:30 UTCSevere Thunderstorm WarningFWD
02:04 UTC02:20 UTCTornado WarningFWD
02:06 UTC05:00 UTCFlash Flood WarningFWD
11:29 UTC16:00 UTCDense Fog AdvisoryFWD

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 00:50 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.

Fort Worth, TX (KFWD), 00:00Z

2.2 hours before the tornado, 37 km from the path. January 16, 2017.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2017-01-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 211 joules per kilogram, CIN -49, lifted condensation level 548 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, Fort Worth, TX at 00:00Z on 2017-01-16The 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 368 square meters per square second, 0 to 6 km bulk shear 44 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
211 J/kg
Mixed-layer CIN
-49 J/kg
Surface CAPE
1 J/kg
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
44 kt
0-1 km bulk shear
38 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
509 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2
0-3 km lapse rate
4.7 K/km

Open this sounding in Storm Lab

Fort Worth, TX (KFWD), 12:00Z

9.8 hours after it, 37 km from the path. January 16, 2017.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2017-01-16Temperature 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 -96295, lifted condensation level 1740 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, Fort Worth, TX at 12:00Z on 2017-01-16The 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 24 square meters per square second, 0 to 6 km bulk shear 58 knots.1939587897Sfc1 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
-96295 J/kg
Surface CAPE
1 J/kg
Mixed-layer LCL
1740 m above ground
0-6 km bulk shear
58 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
2.9 K/km

Open this sounding in Storm Lab

The surface observations

Arlington (Was F54) (GKY), 14 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:15 UTC 1010.8-RA
00:20 UTC110° 15 kt1010.8-RA
00:25 UTC120° 18 kt1010.8RA
00:30 UTC130° 14 kt1011.2RA BR
00:35 UTC120° 16 kt1011.2RA BR
00:40 UTC110° 16 kt1010.8+RA BR
00:45 UTC120° 17 kt1010.8RA BR
00:50 UTC130° 15 kt1010.8-RA BR
00:51 UTC64.462.6130° 14 kt231010.8-TSRA BR
00:53 UTC6562130° 16 kt231010.8TSRA BR
00:55 UTC140° 14 kt191011.2RA
01:00 UTC130° 16 kt1010.8-RA
01:05 UTC130° 14 kt1010.8-RA
01:10 UTC110° 16 kt1010.8RA
01:15 UTC110° 16 kt1010.2-RA
01:20 UTC120° 17 kt1010.5-RA
01:25 UTC120° 16 kt1010.5-RA
01:30 UTC120° 20 kt1010.5-RA
01:35 UTC110° 18 kt1009.8-RA
01:40 UTC 1010.5-RA
01:41 UTC6562120° 20 kt261010.5VCTS RA
01:45 UTC110° 18 kt1010.2RA BR
01:50 UTC 1010.2RA
01:53 UTC6562120° 16 kt291010.2VCTS RA
01:55 UTC120° 19 kt1009.5+RA BR
02:00 UTC120° 18 kt1009.8+RA BR
02:05 UTC 1010.2RA BR
02:10 UTC130° 17 kt1010.5+RA BR
02:11 UTC6562130° 15 kt281010.5+TSRA BR
02:15 UTC6563150° 16 kt281010.8+TSRA BR
02:20 UTC646310° 8 kt241010.2+TSRA FG
02:25 UTC 1008.8+RA FG
02:30 UTC 1009.8+RA BR
02:35 UTC6562180° 16 kt291009.5+TSRA BR
02:40 UTC 1008.8+RA BR
02:45 UTC6662180° 14 kt461009.5-TSRA BR
02:47 UTC66.262.6170° 12 kt321009.1-TSRA BR
02:50 UTC 1008.8-RA
02:53 UTC6662150° 24 kt381008.5-TSRA
02:55 UTC -RA
03:00 UTC6561200° 27 kt381010.8-TSRA
03:05 UTC260° 12 kt1011.9+RA BR
03:08 UTC5653270° 19 kt361011.5+TSRA BR
03:10 UTC270° 17 kt1011.5+RA BR
03:12 UTC5452260° 15 kt271011.5VCTS +RA BR
03:15 UTC260° 16 kt1011.5+RA BR
03:20 UTC240° 15 kt1012.9+RA BR
03:25 UTC5452270° 10 kt231012.9+TSRA BR
03:30 UTC270° 12 kt1012.9+RA BR
03:35 UTC5452280° 16 kt211012.2+TSRA BR
03:40 UTC5451280° 11 kt211012.5TSRA BR
03:45 UTC270° 11 kt1012.9RA BR
03:50 UTC270° 13 kt181013.2RA
03:53 UTC5351280° 14 kt221013.2VCTS RA
03:55 UTC 1013.2RA
04:00 UTC290° 12 kt1012.9RA BR
04:05 UTC290° 8 kt1012.9RA BR
04:10 UTC270° 5 kt1013.9-RA BR

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

The radar

The Dallas/Ft Worth radar (KFWS), 18 km away, was scanning. The volume nearest the touchdown began at 02:13 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
01:19 UTCTSTM WND GST 654 E Rio VistaJohnson, TXESTIMATED 60-70 MPH WINDS ON FM916 BETWEEN GRANDVIEW AND RIO VISTA
01:25 UTCTSTM WND DMGCovingtonHill, TXPOWERLINES DOWNED IN COVINGTON
01:25 UTCTSTM WND GST 704 E Rio VistaJohnson, TXESTIMATED 70-75 MPH WINDS ON FM916 BETWEEN GRANDVIEW AND RIO VISTA
01:30 UTCTSTM WND DMG5 Se CleburneJohnson, TX6-8 INCH TREE LIMBS DOWN. ROOF OFF OF A BARN IN THE SAND FLAT AREA
01:46 UTCTSTM WND GST 70AlvaradoJohnson, TX$$
02:00 UTCTSTM WND DMG10 Ne AlvaradoJohnson, TXDAMAGE TO 5-6 WAREHOUSE BUILDINGS...MOSTLY METAL GARAGE DOORS BLOWN IN/OUT. TIME IS ESTIMATED.
02:06 UTCHAIL 1AlvaradoJohnson, TX607 AND 917 4 NNE OF ALVARADO
02:07 UTCHAIL 1MansfieldTarrant, TX$$
02:30 UTCTSTM WND DMGMansfieldTarrant, TXSHINGLES OFF ROOF NEAR 360 AND NORTH HOLLAND ROAD
02:30 UTCFLASH FLOODAlvaradoJohnson, TXNORTHBOUND 35W CLOSED AT HWY 67 DUE TO FLOODING. CARS STUCK IN HIGH WATER
02:43 UTCTORNADOGrand PrairieDallas, TXCONFIRMED TORNADO STATE HIGHWAY 161 AND ARKANSAS
02:55 UTCTSTM WND GST 633 E ArlingtonTarrant, TXAT KGPM
03:39 UTCTSTM WND GST 65AddisonDallas, TXESTIMATED 65 MPH WIND GUST. DALLAS NORTH TOLLWAY AND BELT LINE ROAD.
03:40 UTCTSTM WND DMG1 Sw Farmers BranchDallas, TXABOUT 10-20 WINDOWS WERE BLOWN OUT OF A 17-STORY OFFICE BUILDING NEAR I-35 AND 635 (LBJ FREEWAY). THE REVOLVING DOOR WAS ALSO BLOWN DOWN.

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

This ground now

The live radar over the trackEvery 2017 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of January 15, 2017

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
January 153:48 PM CSTEF0Madison, TX1.320
January 155:45 PM CSTEF2Coryell, TX12.9200$500,000
January 156:17 PM CSTEF1Bosque, TX1.4120$90,000
January 156:35 PM CSTEF1Bosque, TX6.52002$300,000
January 157:00 PM CSTEF2McCulloch, TX2.0450
January 158:43 PM CSTEF0Dallas, TX0.380$120,000

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.