Tornadoes · United States · Arkansas · 2018

EF0 tornado, El Paso, Arkansas, April 13, 2018

This EF0 tornado ran 0.1 miles across White County on April 13, 2018, touching down at 10:13 PM CDT and reaching 80 yards wide. It killed nobody, and did $2,000 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
April 13, 2018
Touchdown
10:13 PM CDT (03:13 UTC)
Lifted
10:14 PM CDT (03:14 UTC)
On the ground
1 minutes
Path length
0.1 miles (0.1 km)
Path width
80 yards (73 m)
Deaths
0
Injuries
0
Property damage
$2,000
Crop damage
$3,000
County
White County
Touchdown point
35.092, -92.034
Lift-off point
35.092, -92.032
Record number
1804132113-01

The damage survey

5 damage points were recorded along this path by NWS LZK, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 100 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

Numerous supercell thunderstorms moved across Arkansas from the evening of the 13th into the early morning hours of the 14th. These storms produced multiple weak tornadoes and damaging wind gusts across the state. The tornadoes and damaging wind gusts produced primarily light structural damage, and one of the hardest hit areas was a nursing home near Mountain Home that was heavily damaged by 85 mph straight line winds.

A brief tornado occurred along Bears Den Lane southeast of El Paso, AR, uprooting or snapping trees and damaging an outbuilding.

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

The warnings

28 minutes of warning. NWS LZK issued a tornado warning for this county at 02:45 UTC, 28 minutes before the tornado touched down, in force until 03:15 UTC.

The county was under a tornado watch, issued at 02:53 UTC and running to 05:10 UTC.

Issued (UTC)ExpiredProductOffice
17:00 UTC03:00 UTCWind AdvisoryLZK
18:50 UTC02:53 UTCTornado WatchLZK
02:32 UTC03:15 UTCSevere Thunderstorm WarningLZK
02:45 UTC03:15 UTCTornado WarningLZK
02:49 UTC03:30 UTCSevere Thunderstorm WarningLZK
02:53 UTC05:10 UTCTornado WatchLZK
03:09 UTC04:00 UTCSevere Thunderstorm WarningLZK
03:28 UTC04:00 UTCSevere Thunderstorm 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 Moderate Risk, with a 0.15 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 00:55 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.

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

3.2 hours before the tornado, 192 km from the path. April 14, 2018.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1321 joules per kilogram, CIN -1, lifted condensation level 505 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 00:00Z on 2018-04-14The 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 449 square meters per square second, 0 to 6 km bulk shear 45 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
1321 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
1730 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
45 kt
0-1 km bulk shear
46 kt
0-1 km storm-relative helicity
449 m²/s²
0-3 km storm-relative helicity
495 m²/s²
Significant tornado parameter
3.4
Supercell composite
17.1
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

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

8.8 hours after it, 192 km from the path. April 14, 2018.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 64 joules per kilogram, CIN -10, lifted condensation level 441 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 2018-04-14The 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 56 square meters per square second, 0 to 6 km bulk shear 74 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
64 J/kg
Mixed-layer CIN
-10 J/kg
Surface CAPE
141 J/kg
Mixed-layer LCL
441 m above ground
0-6 km bulk shear
74 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
4.8 K/km

Open this sounding in Storm Lab

The surface observations

Little Rock Afb (LRF), 22 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
01:26 UTC71.666.2140° 8 kt201003.7
01:56 UTC71.665.8150° 9 kt161004.1
02:56 UTC72.365.8180° 7 kt151005.1
03:03 UTC71.666.2180° 8 kt1005.1TS
03:18 UTC71.664.4280° 24 kt331007.1TS
03:21 UTC69.859280° 21 kt331007.8-TSRA
03:25 UTC66.259280° 19 kt331008.1+TSRA
03:26 UTC66.259290° 18 kt331007.8+TSRA
03:31 UTC62.659250° 10 kt291008.5+TSRA BR
03:42 UTC60.860.8280° 7 kt1007.1+TSRA FG
03:56 UTC60.460240° 5 kt1007.5+TSRA BR
04:24 UTC60.860.8110° 4 kt1005.4RA BR VCTS
04:31 UTC60.860.8130° 7 kt1006.1-TSRA
04:46 UTC60.860.80° 0 kt1005.4RA BR
04:56 UTC6060100° 6 kt1005.4-RA BR
05:12 UTC60.860.8160° 4 kt1005.8-RA

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

The radar

The Little Rock radar (KLZK), 35 km away, was scanning. The volume nearest the touchdown began at 03:14 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
02:35 UTCTSTM WND DMGNarrows MarinaCleburne, ARTREES AND POWER LINES REPOIRTED DOWN. ROOF DEBRIS ALSO SPOTTED.
02:40 UTCTSTM WND DMGConwayFaulkner, ARSTORM DAMAGE TO UNIVERSITY OF ARKANSAS CAMPUS. CARMICHEAL HALL REPORTED ROOF DAMAGE AND FLOODING.
02:42 UTCTSTM WND DMG5 S GreenbrierFaulkner, ARTREES AND POWER LINES DOWN... SOME LIMBS GREATER THAN 2 INCHES IN DIAMETER
02:42 UTCHAIL 12 Nw ConwayFaulkner, ARQUARTER SIZE HAIL
03:13 UTCTORNADO4 Se El PasoWhite, ARNWS STORM SURVEY CONCLUDED AN EF-1 TORNADO OCCURRED ALONG BEARS DEN LN SOUTHEAST OF EL PASO AR. SOME TREES WERE SNAPPED OR UPROOTED AND A METAL OUTBUILDING LOST ITS ROOF... WITH METAL PANELING STREWN IN A FIELD EAST OF T
03:13 UTCTORNADO4 Se El PasoWhite, ARNWS STORM SURVEY CONCLUDED AN EF-1 TORNADO OCCURRED ALONG BEARS DEN RD SOUTHEAST OF EL PASO AR. SOME TREES WERE SNAPPED OR UPROOTED AND A METAL OUTBUILDING LOST ITS ROOF... WITH METAL PANELING STREWN IN A FIELD EAST OF T
03:20 UTCTSTM WND GST 70Center HillWhite, ARSTORM SPOTTER ESTIMATED WINDS OF 70 MPH IN CENTER HILL.

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

This ground now

The live radar over the trackEvery 2018 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of April 13, 2018

22 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 134:04 PM CDTEF2Crawford, AR11.71,0004$600,000
April 135:46 PM CDTEF1Sebastian, AR5.6400$35,000
April 136:34 PM CDTEF1Ouachita Parish, LA1.7600$125,000
April 136:43 PM CDTEF1Union Parish, LA3.9950$1,000
April 136:48 PM CDTEF1Johnson, AR5.0250
April 137:04 PM CDTEF1Union Parish, LA0.4200
April 137:10 PM CDTEF2Howard, AR2.2350$100,000
April 137:13 PM CDTEF2Wright, MO9.0100$300,000
April 137:33 PM CDTEF2Caldwell Parish, LA4.1340$50,000
April 137:35 PM CDTEF1Wright, MO5.075$25,000
April 137:51 PM CDTEF0Montgomery, AR0.7100
April 138:00 PM CDTEF1Texas, MO1.450$20,000
April 138:20 PM CDTEF1Texas, MO5.550$25,000
April 138:45 PM CDTEF1Baxter, AR0.5150$10,000
April 139:00 PM CDTEF0Richland Parish, LA3.2400$25,000
April 139:13 PM CDTEF0Conway, AR0.2100
April 139:46 PM CDTEF1West Carroll Parish, LA1.9200$65,000
April 1311:04 PM CDTEF1Gregg, TX4.3580$11,000
April 1311:50 PM CDTEF0Caddo Parish, TX to LA10.5100$6,000
April 1312:10 AM CDTEF1Caddo Parish, LA22.51,1001$7.0 million
April 1312:42 AM CDTEF0Bossier Parish, LA5.1300$50,000
April 1312:58 AM CDTEF1Webster Parish, LA2.9500$15,000

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.