Tornadoes · United States · Arkansas · 2016

EF0 tornado, Dolton to Swan Lake, Arkansas, March 13, 2016

From Dolton to Swan Lake, this EF0 tornado ran 0.6 miles across Jefferson County on March 13, 2016, touching down at 6:32 PM CDT and reaching 50 yards wide. It killed nobody, and did $8,000 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
March 13, 2016
Touchdown
6:32 PM CDT (23:32 UTC)
Lifted
6:33 PM CDT (23:33 UTC)
On the ground
1 minutes
Path length
0.6 miles (0.9 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$8,000
County
Jefferson County
Touchdown point
34.145, -91.745
Lift-off point
34.152, -91.740
Record number
1603131732-01

The damage survey

4 damage points were recorded along this path by NWS LZK, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 83 mph.

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

Severe thunderstorms produced very large hail, damaging winds, and tornadoes during the afternoon and evening.

The tornado was spawned just to the east of a home, with bricks removed from the east side of that structure. Several trees were also blown down in the vicinity of the house. The tornado tracked toward the Arkansas River, lifting as it approached the levee on the south side of the river. There was also video confirmation of this tornado from several sources.

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 19:10 UTC and running to 00:14 UTC.

Issued (UTC)ExpiredProductOffice
19:10 UTC00:14 UTCTornado WatchLZK
23:22 UTC00:00 UTCSevere Thunderstorm WarningLZK
23:27 UTC00:15 UTCSevere Thunderstorm WarningLZK
23:39 UTC00:00 UTCTornado WarningLZK
00:14 UTC03:37 UTCTornado WatchLZK
01:32 UTC01:53 UTCTornado WarningLZK

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 19:46 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

11.5 hours before the tornado, 181 km from the path. March 13, 2016.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2016-03-13Temperature 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 -107740, lifted condensation level 840 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 12:00Z on 2016-03-13The 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 63 square meters per square second, 0 to 6 km bulk shear 30 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
-107740 J/kg
Surface CAPE
1 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
30 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
63 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
4.4 K/km

Open this sounding in Storm Lab

The radar

The Little Rock radar (KLZK), 90 km away, was scanning. The volume nearest the touchdown began at 23:32 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
23:27 UTCTSTM WND DMG3 Se MoscowJefferson, ARONE HOUSE HAD ROOF DAMAGE AND ONE END OF THE HOME WAS RIPPED OFF.
23:32 UTCTSTM WND DMGSwan LakeJefferson, ARTHREE HOMES SUSTAINED ROOF DAMAGE AND TWO HOMES SUSTAINED STRUCTURAL DAMAGE.
00:09 UTCTSTM WND DMGDe WittArkansas, ARPOWER LINES WERE BLOWN DOWN NEAR DE WITT.
00:30 UTCTSTM WND DMGCrocketts BluffArkansas, ARA COMBINE WAS FLIPPED OVER ON SAM DEBERRY ROAD.
01:35 UTCTSTM WND DMGGouldLincoln, ARTREES WERE 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 2016 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of March 13, 2016

10 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 133:56 PM CDTEF1Scott, AR4.8850$150,000
March 134:48 PM CDTEF1Montgomery, AR1.7180$200,000
March 136:15 PM CDTEF0Perry, AR1.750$10,000
March 137:00 PM CDTEF0Arkansas, AR1.350
March 137:32 PM CDTEF0Arkansas, AR1.250$8,000
March 137:54 PM CDTEF0Phillips, AR2.9100$25,000
March 138:16 PM CDTEF0Phillips, AR3.8125$35,000
March 139:10 PM CDTEF1Cross, AR2.0125$25,000
March 139:15 PM CDTEF1Chicot, AR9.03001$2.5 million
March 1310:13 PM CDTEF0Bolivar, MS0.550$40,000

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.