Tornadoes · United States · Arkansas · 2020

EF2 tornado, Biggers to Ingram, Arkansas, August 27, 2020

From Biggers to Ingram, this EF2 tornado ran 14.0 miles across Randolph County on August 27, 2020, touching down at 10:07 PM CDT and reaching 100 yards wide. It killed nobody, and did $200,000 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 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mphthis tornado

    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
EF2
Date
August 27, 2020
Touchdown
10:07 PM CDT (03:07 UTC)
Lifted
10:23 PM CDT (03:23 UTC)
On the ground
16 minutes
Path length
14.0 miles (22.6 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$200,000
County
Randolph County
Touchdown point
36.308, -90.809
Lift-off point
36.424, -91.013
Record number
2008272107-01

The damage survey

22 damage points were recorded along this path by NWS LZK, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 115 mph.

  • Wind uplifted the roof center section and tossed the debris to the WSW. The portion of the house with least damage was opposite the open carport west side that shared roof structure with the home. This was the most severe damage of the tornado.

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

Tropical Storm Laura moved ashore from the Gulf of Mexico near Cameron, LA, around 1200 AM CST on August 27, 2020 with 150 mph sustained winds! This part of the state had never experienced such a powerful (Category 4) hurricane. Measured gusts exceeded 130 mph in Lake Charles, LA. Not only was there widespread structural damage, a television tower was destroyed and the WSR-88D (Doppler Weather Radar) at the local National Weather Service (NWS) office was obliterated. Staff at the office was evacuated prior to the arrival of Laura, with backup provided by NWS Brownsville, TX.||Laura remained a hurricane well inland as the system ventured to the north at around 15 mph. A swath of heavy rain (two to more than five inches) spread into southern, central, and northeast Arkansas in the twenty four hour period ending at 700 am CDT on the 28th. Fordyce (Dallas County) received 5.25 inches of precipitation, with 4.48 inches at Cabot (Lonoke County), 4.39 inches at Marche (Pulaski County), 4.37 inches at North Little Rock (Pulaski County), 4.17 inches at Keo (Lonoke County), 3.85 inches at Calamine (Sharp County), 3.60 inches at Stuttgart (Arkansas County), 3.55 inches at Batesville (Independence County) and El Dorado (Union County), 3.53 inches at Sheridan (Grant County), and 3.50 inches at Alicia (Lawrence County).||The atmosphere was loaded with moisture, and this created high rainfall rates. Water came down faster than it could be carried away, and roads flooded at Benton (Saline County), North Little Rock and Sherwood (both in Pulaski County), Walnut Ridge and near Ravenden (both in Lawrence County), and a few miles east of Mena (Polk County).

A storm survey crew from the NWS Office in Little Rock found tornado consistent with an EF2 rating. A house sustained major roof damage on Highway 328 west of Maynard, with most of the walls still standing. An agricultural shop was destroyed 2 miles south of Biggers. ||The tornado started just southeast of US67/62 southwest of|Biggers, destroying a metal farm building and snapping trees|along Lutrell Cemetery Road. The tornado continued northwest|blowing in some garage doors on some large metal buildings, along|with snapping limbs off of multiple trees along Gas Plant and|Biggers-Reyno roads. The tornado continued northwest for several|miles, causing mainly damage to trees, from broken limbs, to|uprooting or snapping those tree trunks. The worst damage was|observed at a site built home off of State Hwy 328 and Jerrett|Loop Road southwest of Maynard, where large sections of the roof|were torn off allowing a couple walls to fall inward. At the same|residence, a large metal outbuilding or barn was destroyed. Many|mature trees were snapped or uprooted around this location. The|tornado finally lifted further northwest along State Hwy 251|south of Palestine Road.

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 01:50 UTC and running to 03:54 UTC.

Issued (UTC)ExpiredProductOffice
01:50 UTC03:54 UTCTornado WatchLZK
01:52 UTC02:13 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 Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 01:00 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 (KLZK), 00:00Z

3.1 hours before the tornado, 192 km from the path. August 28, 2020.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2020-08-28Temperature 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 -68566, lifted condensation level 582 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 2020-08-28The 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 -48 square meters per square second, 0 to 6 km bulk shear 6 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
-68566 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
6 kt
0-1 km bulk shear
29 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.1 K/km

Open this sounding in Storm Lab

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

8.9 hours after it, 192 km from the path. August 28, 2020.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2020-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 177 joules per kilogram, CIN -11, lifted condensation level 650 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 2020-08-28The 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 297 square meters per square second, 0 to 6 km bulk shear 27 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
177 J/kg
Mixed-layer CIN
-11 J/kg
Surface CAPE
483 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
27 kt
0-1 km bulk shear
38 kt
0-1 km storm-relative helicity
297 m²/s²
0-3 km storm-relative helicity
421 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

The surface observations

Corning (4M9), 24 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
01:15 UTC80.680.670° 18 kt1007.5BR
01:35 UTC80.680.660° 17 kt221007.1
01:55 UTC80.680.660° 18 kt1006.4
02:15 UTC80.680.660° 18 kt271006.4
02:35 UTC80.680.670° 21 kt281006.8BR
02:55 UTC80.680.670° 20 kt271006.4BR
03:15 UTC
03:35 UTC7777120° 22 kt301007.1BR
03:55 UTC7777100° 20 kt261007.1
04:15 UTC7777100° 18 kt241006.8
04:35 UTC777780° 17 kt1006.4BR
04:55 UTC75.275.270° 14 kt221005.4BR

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

The radar

The Memphis radar (KNQA), 147 km away, was scanning. The volume nearest the touchdown began at 03:05 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
00:45 UTCNON-TSTM WND DMG3 Ssw BonoCraighead, ARLARGE TREE DOWN BLOCKING COUNTY ROAD 118 NEAR BONO.
01:33 UTCTSTM WND DMGEgyptCraighead, ARSEVERAL TREES DOWN IN THE EGYPT AREA.
01:33 UTCTSTM WND DMGEgyptCraighead, ARSEVERAL TREES DOWN IN THE EGYPT AREA BLOCKING HIGHWAY 91.
01:40 UTCTSTM WND DMGJonesboroCraighead, ARPOWERLINES DOWN ALONG NETTLETON, MATTHEWS, AND AIRPORT ROADS.
01:45 UTCNON-TSTM WND DMGOzark AcresSharp, ARPOWERLINES DOWN IN OZARK ACRES.
01:45 UTCNON-TSTM WND DMGSedgwickLawrence, ARTRANSFORMERS BLOWN AND POWERLINES DOWN IN SEDGWICK ON SMITH AVE.
02:00 UTCTSTM WND DMG3 Nnw JonesboroCraighead, ARLARGE TREE ON MOBILE HOME OFF OF DUNCAN ROAD.
02:00 UTCTSTM WND DMG4 Ese JonesboroCraighead, ARPOWER POLE AND LINES DOWN AT COMMERCE DRIVE AND I-555.
02:33 UTCTSTM WND DMG4 Nne BrooklandCraighead, ARSIGNIFICANT DAMAGE TO TREES AND AT LEAST ONE HOME JUST NORTH OF GOOBERTOWN. POSSIBLE TORNADO DAMAGE.
02:35 UTCTSTM WND DMG1 Se ParagouldGreene, ARLARGE TREE DOWN IN THE 1100 BLOCK OF WEST THOMPSON ST.
02:40 UTCTSTM WND DMG4 E WalcottGreene, ARLARGE TREE DOWN ON PINE KNOT ROAD AND COUNTY ROAD 715.
02:45 UTCFLASH FLOODWalnut RidgeLawrence, ARNORTHWEST 4TH AND MAIN STREET ARE CLOSED DUE TO HIGH WATER IN WALNUT RIDGE.
03:00 UTCTSTM WND DMG2 Wsw MaynardRandolph, ARA HOUSE WAS DESTORYED ON HIGHWAY 328 WEST OF MAYNARD. AN AGRICULTURAL SHOP WAS DESTOYED 2 MILES SOUTH OF BIGGERS, AND 9 MILES NORTH OF POCOHONTAS SEVERAL LARGE TREES WERE DOWNED. POWER IS OUT FOR MUCH OF THE COUNTY. TIME
03:20 UTCTORNADO4 Wsw MaynardRandolph, ARA SURVEY CREW FROM THE NWS OFFICE IN LITTLE ROCK FOUND TORNADO DAMAGE CONSISTANT WITH AN EF2 RATING. A HOUSE SUSTAINED MAJOR ROOF DAMAGE, WITH MOST OF THE WALLS STILL STANDING. ADDITIONAL INFORMATION IS STILL BEING GATHE
04:00 UTCFLASH FLOOD3 Sw RavendenLawrence, ARCOUNTY ROAD 106 HAD A PORTION OF IT WASHED OUT BY FLOODING. PICTURE AND REPORT FROM SOCIAL MEDIA.

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

This ground now

The live radar over the trackEvery 2020 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of August 27, 2020

14 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 272:11 PM EDTEF1Greene, NY0.325
August 273:24 PM EDTEF0Northwest Hills Planning Region, CT0.575
August 273:36 PM EDTEF0Northwest Hills Planning Region, CT0.120
August 273:53 PM EDTEF1South Central Connecticut Planning Region, CT11.1500$500,000
August 276:15 PM EDTEF1Orange, NY2.6600$25,000
August 276:29 PM CDTEF0St. Francis, AR2.160$3,000
August 276:45 PM CDTEF0Woodruff, AR1.350$20,000
August 277:13 PM CDTEF1Cross, AR2.180$30,000
August 278:31 PM CDTEF1Craighead, AR3.670$15,000
August 278:55 PM CDTEF0Poinsett, AR0.960
August 279:13 PM CDTEF1Craighead, AR4.5120$50,000
August 279:24 PM CDTEF1Craighead, AR0.950$35,000
August 2712:56 AM CDTEF0Spink, SD1.840
August 2712:56 AM CDTEF1Spink, SD2.840

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.