Tornadoes · United States · Arkansas · 1998
F1 tornado, Gravette, Arkansas, March 30, 1998
This F1 tornado ran 1.2 miles across Benton County on March 30, 1998, touching down at 8:25 PM CST and reaching 130 yards wide. It killed nobody, and did $100,000 of property damage.
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
- March 30, 1998
- Touchdown
- 8:25 PM CST (02:25 UTC)
- Path length
- 1.2 miles (1.9 km)
- Path width
- 130 yards (119 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $100,000
- County
- Benton County
- Touchdown point
- 36.400, -94.450
- Lift-off point
- 36.420, -94.430
- Record number
- 53
What the Weather Service recorded
A solid line of thunderstorms covering the entire north-south length of Oklahoma, associated with a cold front and wave of low pressure, moved into western Arkansas around 800 PM on the evening of March 30. The part of the line moving out of eastcentral Oklahoma had a bow echo signature as it moved into Arkansas, causing many reports of severe tstm winds. At the north end of this bow echo in Benton County, an F1 tornado formed near Gravette, causing considerable damage on the south and east sides of town.
Considerable damage was reported with an F1 tornado and thunderstorm winds that blew through Gravette. Three homes in the area were damaged when large trees blew over. One of the houses' occupants described the storm as sounding like a freight train. Other homes had minor roof damage. High winds downed a power line, which left the east side of the city without power for about 35 to 40 minutes. Doors were blown out of the Hendren Plastics plant on Hwy. 72 in eastern Gravette. A tree was blown onto Hwy. 72 near Gravette, making travel impossible until it was removed around 10 pm. Another tree was blown across Ridge 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.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 01:38 UTC | 02:30 UTC | Severe Thunderstorm Warning | TSA |
| 02:35 UTC | 03:00 UTC | Severe Thunderstorm Warning | TSA |
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 10:52 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
2.4 hours before the tornado, 79 km from the path. March 31, 1998.
- Mixed-layer CAPE
- 368 J/kg
- Mixed-layer CIN
- -25 J/kg
- Surface CAPE
- 643 J/kg
- Mixed-layer LCL
- 1388 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.0
- 0-3 km lapse rate
- 6.9 K/km
Springfield, MO (KSGF), 12:00Z
9.6 hours after it, 79 km from the path. March 31, 1998.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -69304 J/kg
- Surface CAPE
- 55 J/kg
- Mixed-layer LCL
- 882 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -265 m²/s²
- 0-3 km storm-relative helicity
- -25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.9 K/km
The radar
The Tulsa radar (KINX), 104 km away, was scanning. The volume nearest the touchdown began at 02:27 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 1998 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are
The other tornadoes of March 30, 1998
2 more were confirmed in the United States that day.
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.