Tornadoes · United States · Tennessee · 2016

EF1 tornado, Counce to Pyburns, Tennessee, March 31, 2016

From Counce to Pyburns, this EF1 tornado ran 1.5 miles across Hardin County on March 31, 2016, touching down at 4:28 PM CDT and reaching 75 yards wide. It killed nobody, and did $25,000 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 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mphthis tornado

    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
EF1
Date
March 31, 2016
Touchdown
4:28 PM CDT (21:28 UTC)
Lifted
4:31 PM CDT (21:31 UTC)
On the ground
3 minutes
Path length
1.5 miles (2.3 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
Property damage
$25,000
County
Hardin County
Touchdown point
35.076, -88.289
Lift-off point
35.079, -88.263
Record number
1603311528-01

What the Weather Service recorded

In the wake of a departing mesoscale convective system the airmass quickly destabilized across the Mid-South by the late morning hours on March 31, 2016. Meanwhile another potent upper level disturbance moved through the region. As a result numerous showers and thunderstorms erupted across the Mid-South in advance of an approaching cold front. Numerous severe storms occurred with damaging winds and large hail. A weak tornado also occurred in Hardin County. Storms eventually pushed east as the cold front moved through the region.

A weak tornado caused mainly roof damage to a home and damage to a recreational vehicle. Trees were knocked down along with a power pole. Peak estimated wind was 90 mph.

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. One was issued for the county at another hour that day.

The county was under a tornado watch, issued at 19:35 UTC and running to 02:11 UTC.

Issued (UTC)ExpiredProductOffice
19:35 UTC02:11 UTCTornado WatchMEG
20:25 UTC21:15 UTCSevere Thunderstorm WarningMEG
20:38 UTC21:10 UTCTornado WarningMEG
20:39 UTC20:47 UTCTornado WarningMEG
21:09 UTC22:15 UTCSevere Thunderstorm WarningMEG
21:21 UTC22:00 UTCSevere Thunderstorm WarningMEG
21:38 UTC23:45 UTCFlood AdvisoryMEG
21:40 UTC22:15 UTCSevere Thunderstorm WarningMEG

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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. 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.

Little Rock, AR (KBYH), 12:00Z

9.5 hours before the tornado, 155 km from the path. March 31, 2016.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2016-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 866 joules per kilogram, CIN -18, lifted condensation level 556 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, Little Rock, AR at 12:00Z on 2016-03-31The 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 107 square meters per square second, 0 to 6 km bulk shear 49 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
866 J/kg
Mixed-layer CIN
-18 J/kg
Surface CAPE
1350 J/kg
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
49 kt
0-1 km bulk shear
34 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Little Rock, AR (KBYH), 00:00Z

2.5 hours after it, 155 km from the path. April 1, 2016.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2016-04-01Temperature 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 -88343, lifted condensation level 2015 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, Little Rock, AR at 00:00Z on 2016-04-01The 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 -57 square meters per square second, 0 to 6 km bulk shear 67 knots.1939587897117136156Sfc1 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
-88343 J/kg
Surface CAPE
118 J/kg
Mixed-layer LCL
2015 m above ground
0-6 km bulk shear
67 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
-57 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0
0-3 km lapse rate
7.5 K/km

Open this sounding in Storm Lab

The surface observations

Savannah (SNH), 12 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:35 UTC71.664.4170° 15 kt211004.7
19:55 UTC73.464.4180° 15 kt211004.1
20:15 UTC73.464.4170° 13 kt201003.7
20:35 UTC71.664.4160° 13 kt191003.4
20:55 UTC71.664.4170° 9 kt1004.1
21:15 UTC69.866.280° 6 kt1003HZ
21:30 UTC6866.2310° 12 kt211004.4BR

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

The radar

The Columbus AFB radar (KGWX), 131 km away, was scanning. The volume nearest the touchdown began at 21:30 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
20:20 UTCHAIL 12 E HendersonChester, TN50 MPH WINDS WITH QUARTER SIZED HAIL EAST OF HENDERSON.
20:29 UTCHAIL 1.75ReaganHenderson, TNGOLF BALL SIZED HAIL IN REAGAN, TENNESSEE
20:33 UTCTSTM WND DMG3 E Jacks CreekChester, TNSTURCTURAL DAMAGE AND TREES DOWN IN THE ROBY COMMUNITY. ALONG WITH PEA SIZE HAIL.
20:39 UTCFUNNEL CLOUDReaganHenderson, TNFUNNEL CLOUD REPORTED IN THE REAGAN AREA.
21:25 UTCHAIL 1SavannahHardin, TNQUARTER SIZE HAIL IN SAVANNAH.
21:28 UTCTORNADO2 Nnw CounceHardin, TNAN EF-1 TORNADO CAUSED DAMAGE TO A HOUSE AND RV JUST EAST OF THE TENNESSEE RIVER.
21:45 UTCFUNNEL CLOUD1 W Pickwick DamHardin, TNFUNNEL CLOUD WITH STORM ROTATION HALF MILE WEST OF PICKWICK DAM.
21:58 UTCTSTM WND DMG1 N CounceHardin, TNMANY TREES DOWN AND ONE HOUSE DESTORYED NEAR PICKWICK DAM. THIS IS POSSIBLE TORNADO.
22:12 UTCTSTM WND DMG9 S CollinwoodWayne, TN12 INCH DIAMETER TREE DOWN SOUTH OF COLLINWOOD

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 TennesseeEvery tornado in Tennessee since 1950Warnings in force in Tennessee nowThe forecast where you are

The other tornadoes of March 31, 2016

19 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 315:55 AM CDTEF1Saint Helena Parish, LA0.250
March 316:05 AM CDTEF1Tangipahoa Parish, LA4.6250
March 317:53 AM CDTEF1Lamar, MS1.450$70,000
March 312:02 PM CDTEF1Daviess, KY3.0250$100,000
March 314:40 PM EDTEF1Tippecanoe, IN0.130$50,000
March 314:31 PM CDTEF0Perry, TN3.5350$20,000
March 314:45 PM CDTEF0Lewis, TN0.750$5,000
March 315:49 PM EDTEF1Noble, IN0.530
March 315:56 PM EDTEF1Wabash, IN0.760
March 315:56 PM EDTEF0White, IN3.1120
March 316:18 PM CDTEF1Lowndes, MS to AL7.8600$225,000
March 317:38 PM EDTEF0Grady, GA0.350$2,000
March 316:43 PM CDTEF1Pickens, AL2.9350
March 317:03 PM CDTEF1Fayette, AL3.7650
March 317:27 PM CDTEF1Fayette, AL3.7500
March 318:05 PM CDTEF0Fayette, AL1.9400
March 319:42 PM CDTEF1Blount, AL0.3275
March 319:54 PM CDTEF2Morgan, AL9.6200
March 3112:19 AM CDTEF0Lee, AL2.150

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.