Tornadoes · United States · Arkansas · 2003

F0 tornado, Oxford, Arkansas, April 24, 2003

This F0 tornado ran 0.5 miles across Izard County on April 24, 2003, touching down at 7:50 PM CDT and reaching 20 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 mphthis tornado

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

  2. F173 to 112 mph

    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
F0
Date
April 24, 2003
Touchdown
7:50 PM CDT (00:50 UTC)
Path length
0.5 miles (0.8 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
County
Izard County
Touchdown point
36.220, -92.000
Lift-off point
36.220, -91.980
Record number
92

What the Weather Service recorded

A weak tornado touched down briefly west of Oxford. Only minor tree damage was noted along the path of the tornado, with mainly large limbs downed.

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

The warnings

10 minutes of warning. NWS LZK issued a tornado warning for this county at 00:40 UTC, 10 minutes before the tornado touched down, in force until 01:10 UTC.

Issued (UTC)ExpiredProductOffice
22:39 UTC23:25 UTCTornado WarningLZK
23:23 UTC00:05 UTCTornado WarningLZK
00:13 UTC00:55 UTCSevere Thunderstorm WarningLZK
00:40 UTC01:10 UTCTornado WarningLZK
01:09 UTC01:55 UTCTornado WarningLZK
01:49 UTC04:50 UTCFlash Flood WarningLZK
02:01 UTC02:20 UTCSevere Thunderstorm WarningLZK
02:08 UTC02:20 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 20:09 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.

Springfield, MO (KSGF), 00:00Z

0.8 hours before the tornado, 178 km from the path. April 25, 2003.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2003-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 746 joules per kilogram, CIN -45, lifted condensation level 1597 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, Springfield, MO at 00:00Z on 2003-04-25The 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 30 square meters per square second, 0 to 6 km bulk shear 59 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
746 J/kg
Mixed-layer CIN
-45 J/kg
Surface CAPE
2445 J/kg
Mixed-layer LCL
1597 m above ground
0-6 km bulk shear
59 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8
0-3 km lapse rate
8.0 K/km

Open this sounding in Storm Lab

Springfield, MO (KSGF), 12:00Z

11.2 hours after it, 178 km from the path. April 25, 2003.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2003-04-25Temperature 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 -90224, lifted condensation level 647 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, Springfield, MO at 12:00Z on 2003-04-25The 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 16 square meters per square second, 0 to 6 km bulk shear 33 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
-90224 J/kg
Surface CAPE
1 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
33 kt
0-1 km bulk shear
17 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.5 K/km

Open this sounding in Storm Lab

The surface observations

Mountain Home/Baxter County (BPK), 46 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
22:53 UTC646390° 11 kt17998.3VCTS -RA BR
23:20 UTC62.662.640° 8 kt998.6+TSRA BR
23:38 UTC62.662.690° 15 kt998.6-TSRA BR
23:42 UTC62.662.680° 14 kt998.6-TSRA BR
23:53 UTC6159110° 7 kt999.3-TSRA BR
00:53 UTC616060° 8 kt998.6BR
01:01 UTC60.860.870° 9 kt998.6VCTS
01:09 UTC60.860.870° 7 kt999
01:22 UTC60.860.860° 10 kt999
01:53 UTC595870° 3 kt999.3

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

The radar

The Little Rock radar (KLZK), 156 km away, was scanning. The volume nearest the touchdown began at 00:47 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.

This ground now

The live radar over the trackEvery 2003 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of April 24, 2003

26 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 242:13 PM CDTF1Franklin, KS0.380$100,000
April 243:13 PM CDTF0Miami, KS0.250
April 244:00 PM CDTF1Washington Parish, LA to MS22.030$100,000
April 244:06 PM CDTF0Pearl River, MS2.025$2,000
April 244:15 PM CDTF2West Carroll Parish, LA11.0753$400,000
April 244:26 PM CDTF0Jackson, AR6.750
April 245:00 PM CDTF0Osage, KS0.180$10,000
April 245:27 PM CDTF0Stone, AR1.350
April 245:40 PM CDTF0Hinds, MS1.030$100,000
April 245:42 PM CDTF0Stone, AR0.220
April 245:45 PM CDTF0Perry, MS0.120$10,000
April 245:47 PM CDTF0Franklin, KS0.150
April 246:08 PM CDTF1Marion, AR4.92001
April 246:20 PM CDTF0Perry, MS0.120$10,000
April 246:35 PM CDTF0Greene, MS0.120$10,000
April 246:44 PM CDTF1Baxter, AR4.750
April 248:10 PM CDTF2Union, AR16.7125
April 248:20 PM CDTF1Union, AR20.0100$30,000
April 248:47 PM CDTF0Leake, MS0.325$10,000
April 248:54 PM CDTF0Arkansas, AR3.050
April 249:44 PM CDTF1Ashley, AR3.0125$200,000
April 249:53 PM CDTF3Rankin, MS12.06006$50 million
April 2410:27 PM CDTF0Chicot, AR3.075$200,000
April 2410:40 PM CDTF1Kemper, MS6.050$70,000
April 2410:47 PM CDTF0Chicot, AR2.530$300,000
April 2411:41 PM CDTF0Jackson, AR2.250

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.