Tornadoes · United States · Arkansas · 2003
F1 tornado, Dalark to Rolla, Arkansas, May 7, 2003
From Dalark to Rolla, this F1 tornado ran 4.0 miles across Hot Spring and Dallas counties on May 7, 2003, touching down at 2:03 AM CDT and reaching 300 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.
F040 to 72 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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 7, 2003
- Touchdown
- 2:03 AM CDT (07:03 UTC)
- Path length
- 4.0 miles (6.4 km)
- Path width
- 300 yards (274 m)
- Deaths
- 0
- Injuries
- 0
- Counties
- Hot Spring and Dallas counties
- Touchdown point
- 34.130, -92.830
- Lift-off point
- 34.130, -92.780
- Record number
- 329
What the Weather Service recorded
A weak tornado touched down over northeast Dallas County about 7 miles north-northeast of Dalark. The tornado moved through mostly rural areas and caused extensive tree damage. The tornado moved northeast into Hot Spring County.
A weak tornado moved from Dallas County into Hot Spring County about 6 miles southwest of Rolla. The tornado was only on the ground for just under a mile before dissipating. Since the tornado continued to move over rural areas, the only damage noted was a number of trees knocked down.
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.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 08:29 UTC | 09:15 UTC | Severe Thunderstorm Warning | LZK |
| 08:30 UTC | 09:15 UTC | Severe Thunderstorm Warning | LZK |
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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 05:49 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.
Shreveport, LA (KSHV), 00:00Z
7.1 hours before the tornado, 203 km from the path. May 7, 2003.
- Mixed-layer CAPE
- 2206 J/kg
- Mixed-layer CIN
- -215 J/kg
- Surface CAPE
- 4440 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 303 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 11.5
- 0-3 km lapse rate
- 5.3 K/km
Shreveport, LA (KSHV), 12:00Z
4.9 hours after it, 203 km from the path. May 7, 2003.
- Mixed-layer CAPE
- 2166 J/kg
- Mixed-layer CIN
- -19 J/kg
- Surface CAPE
- 2691 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 222 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 12.1
- 0-3 km lapse rate
- 5.2 K/km
The radar
The Little Rock radar (KLZK), 93 km away, was scanning. The volume nearest the touchdown began at 07:04 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 May 7, 2003
28 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| May 7 | 2:10 AM CDT | F0 | Marion, TX to LA | 13.0 | 25 | |||
| May 7 | 5:16 AM CDT | F1 | Arkansas, AR | 2.9 | 350 | |||
| May 7 | 5:43 AM CDT | F1 | Lincoln Parish, LA | 5.3 | 100 | |||
| May 7 | 9:25 AM CDT | F2 | Chickasaw, MS | 27.5 | 440 | 6 | $3.0 million | |
| May 7 | 11:11 AM CDT | F1 | Lamar, AL | 0.5 | 25 | $10,000 | ||
| May 7 | 12:11 PM CDT | F1 | Walker, AL | 2.4 | 40 | $20,000 | ||
| May 7 | 2:10 PM CDT | F1 | St. Clair, AL | 4.5 | 50 | $90,000 | ||
| May 7 | 2:40 PM CDT | F1 | Talladega, AL | 4.6 | 50 | $10,000 | ||
| May 7 | 2:45 PM CDT | F1 | Shelby, AL | 1.3 | 50 | $170,000 | ||
| May 7 | 2:46 PM CDT | F1 | Dallas, AR | 27.2 | 150 | |||
| May 7 | 3:20 PM CDT | F0 | Scott, MS | 0.3 | 30 | $10,000 | ||
| May 7 | 3:21 PM CDT | F0 | St. Clair, AL | 0.2 | 25 | $10,000 | ||
| May 7 | 2:30 PM MDT | F0 | Adams, CO | 0.1 | 50 | |||
| May 7 | 3:41 PM CDT | F0 | Clay, AL | 1.2 | 70 | $1,000 | ||
| May 7 | 3:45 PM CDT | F0 | Newton, MS | 0.5 | 30 | $30,000 | ||
| May 7 | 3:57 PM CDT | F0 | Clay, AL | 1.1 | 50 | $2,000 | ||
| May 7 | 4:08 PM CDT | F0 | Clay, AL | 1.2 | 20 | $3,000 | ||
| May 7 | 5:25 PM EDT | F1 | Fauquier, VA | 5.0 | 75 | $10,000 | ||
| May 7 | 4:40 PM CDT | F1 | Randolph, AL | 12.9 | 500 | $90,000 | ||
| May 7 | 6:15 PM EDT | F0 | Heard, GA | 0.1 | 50 | $80,000 | ||
| May 7 | 6:20 PM EDT | F0 | Heard, GA | 0.2 | 50 | $3,000 | ||
| May 7 | 5:31 PM CDT | F0 | Marengo, AL | 0.1 | 40 | $1,000 | ||
| May 7 | 6:32 PM EDT | F0 | Coweta, GA | 0.1 | 25 | $1,000 | ||
| May 7 | 7:23 PM EDT | F0 | Saint Mary's, MD | 0.5 | 75 | $30,000 | ||
| May 7 | 7:30 PM EDT | F0 | Saint Mary's, MD | 2.0 | 100 | $30,000 | ||
| May 7 | 7:50 PM CDT | F1 | Callahan, TX | 3.0 | 500 | |||
| May 7 | 8:00 PM CDT | F0 | Eastland, TX | 0.3 | 50 | |||
| May 7 | 10:18 PM CDT | F0 | Wilbarger, TX | 0.2 | 20 |
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.