Tornadoes · United States · Arkansas · 2001

F1 tornado, Quitman, Arkansas, May 20, 2001

This F1 tornado ran 5.8 miles across Cleburne County on May 20, 2001, touching down at 12:10 PM CDT and reaching 150 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

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

  2. F173 to 112 mphthis tornado

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

  3. F2113 to 157 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. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 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
F1
Date
May 20, 2001
Touchdown
12:10 PM CDT (17:10 UTC)
Path length
5.8 miles (9.3 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
0
County
Cleburne County
Touchdown point
35.400, -92.200
Lift-off point
35.430, -92.100
Record number
180

What the Weather Service recorded

An F1 tornado first touched down about 2 miles northeast of Quitman. Along the path of the tornado, a large metal barn was destroyed and another was badly damaged. Several other barns had portions of their tin roofs taken off. There were numerous trees blown down, along with some power lines and a couple of power poles. The worst damage appeared to be along Highway 16 just northwest of Highway 25 in the Pearson community. The tornado lifted one and a half miles east of Pearson.

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

The warnings

2 minutes of warning. NWS LZK issued a tornado warning for this county at 17:08 UTC, 2 minutes before the tornado touched down, in force until 17:50 UTC.

Issued (UTC)ExpiredProductOffice
17:03 UTC18:00 UTCSevere Thunderstorm WarningLZK
17:08 UTC17:50 UTCTornado WarningLZK
04:32 UTC05:30 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. The outlook in force was issued at 16:21 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), 12:00Z

5.2 hours before the tornado, 210 km from the path. May 20, 2001.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2001-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 106 joules per kilogram, CIN -86, lifted condensation level 1263 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 2001-05-20The 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 78 square meters per square second, 0 to 6 km bulk shear 24 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
106 J/kg
Mixed-layer CIN
-86 J/kg
Surface CAPE
224 J/kg
Mixed-layer LCL
1263 m above ground
0-6 km bulk shear
24 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

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

6.8 hours after it, 210 km from the path. May 21, 2001.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2001-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2153 joules per kilogram, CIN -22, lifted condensation level 1093 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2001-05-21The 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 211 square meters per square second, 0 to 6 km bulk shear 50 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
2153 J/kg
Mixed-layer CIN
-22 J/kg
Surface CAPE
2937 J/kg
Mixed-layer LCL
1093 m above ground
0-6 km bulk shear
50 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
2.7
Supercell composite
13.2
0-3 km lapse rate
6.4 K/km

Open this sounding in Storm Lab

The surface observations

Searcy Municipal Airport (M07) (SRC), 44 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
15:53 UTC8368180° 6 kt1006.8
16:53 UTC8467200° 11 kt1005.8
17:28 UTC80.669.8290° 9 kt151007.1-TSRA
17:31 UTC75.268310° 24 kt391007.8+TSRA SQ
17:38 UTC64.462.6320° 17 kt391008.1+TSRA SQ FG
17:53 UTC6563310° 13 kt251007.1+TSRA BR
18:00 UTC64.462.6320° 10 kt191006.8+TSRA BR
18:09 UTC64.462.6260° 4 kt1007.1TSRA BR
18:22 UTC64.464.450° 3 kt1006.8-TSRA
18:53 UTC706790° 6 kt1006.1TS

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

This ground now

The live radar over the trackEvery 2001 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of May 20, 2001

32 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 204:20 PM CDTF2Hughes, OK11.0250$230,000
May 204:20 PM CDTF0Phillips, KS0.110
May 204:40 PM CDTF0Rooks, KS0.530$10,000
May 204:58 PM CDTF0Rooks, KS1.050$120,000
May 205:16 PM CDTF0Rooks, KS0.530
May 206:15 PM CDTF0Wilson, TX0.330$10,000
May 206:30 PM CDTF0Haskell, OK0.5200
May 206:30 PM CDTF0Osage, OK0.325
May 206:44 PM CDTF0Russell, KS0.555
May 206:47 PM CDTF0Russell, KS1.555
May 206:49 PM CDTF0Barton, KS3.0110
May 206:51 PM CDTF0Pontotoc, OK0.325
May 206:54 PM CDTF0Haskell, OK0.3150$3,000
May 206:58 PM CDTF0Pittsburg, OK0.3100
May 207:15 PM CDTF0Coal, OK0.1150
May 207:30 PM CDTF0Haskell, OK1.0100
May 207:37 PM CDTF0Latimer, OK0.325
May 207:40 PM CDTF0Coal, OK0.230
May 207:44 PM CDTF0Sedgwick, KS0.555
May 207:55 PM CDTF0White, AR0.120
May 207:55 PM CDTF0LeFlore, OK0.325
May 208:13 PM CDTF0Madison, AR0.325
May 208:14 PM CDTF0Stafford, KS0.230
May 208:20 PM CDTF0Stafford, KS1.350
May 208:25 PM CDTF0Carroll, AR0.325
May 208:29 PM CDTF0Sebastian, AR1.0100$10,000
May 208:30 PM CDTF0Newton, MO0.5200$10,000
May 208:50 PM CDTF1LeFlore, OK1.0200$1,000
May 208:51 PM CDTF0Franklin, AR0.325
May 208:10 PM MDTF0Hamilton, KS0.230
May 2010:35 PM CDTF0Reynolds, MO0.150
May 2011:42 PM CDTF1Faulkner, AR4.0100

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.