Tornadoes · United States · Indiana · 1998
F0 tornado, Edwardsport to Plainville, Indiana, June 29, 1998
From Edwardsport to Plainville, this F0 tornado ran 1.2 miles across Daviess and Knox counties on June 29, 1998, touching down at 7:58 PM EST and reaching 80 yards wide. It killed nobody, and did $10,000 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 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
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
- F0
- Date
- June 29, 1998
- Touchdown
- 7:58 PM EST (00:58 UTC)
- Path length
- 1.2 miles (1.9 km)
- Path width
- 80 yards (73 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $10,000
- Counties
- Daviess and Knox counties
- Touchdown point
- 38.820, -87.250
- Lift-off point
- 38.800, -87.180
- Record number
- 1162
What the Weather Service recorded
A large and powerful squall line known as a Derecho originated in Iowa the morning of the 29th, slammed through Central Illinois the afternoon of the 29th and swept across Central Indiana the evening of the 29th. This squall line produced wind gusts of 40 to nearly 80 mph across central Indiana causing damage in nearly every central Indiana County. A weak tornado briefly touched down near Brazil aroun 7 PM while another weak tornado briefly touched down near Edwardsport around 9 PM. These tornadoes caused minor house damage and major tree damage. Otherwise, most wind damage resulted in widespread tree and powerline damage across central Indiana, and in a handful of cases, trees fell on houses and/or cars causing additional damage. Hardest hit areas included the Indianapolis area near Plainfield where hundreds of trees were mowed down by 70 mph straightline winds. Also hard hit was the Bedford area with hundreds of trees being toppled. And the Columbus area also experienced widespread tree and powerline damage in addition to two semitractor trucks being blown off I-65.
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.
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 10:58 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.
Lincoln, IL (KILX), 12:00Z
11.0 hours after it, 191 km from the path. June 30, 1998.
- Mixed-layer CAPE
- 28 J/kg
- Mixed-layer CIN
- -221 J/kg
- Surface CAPE
- 105 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.9 K/km
This ground now
The live radar over the trackEvery 1998 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are
The other tornadoes of June 29, 1998
26 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 29 | 12:52 PM CDT | F2 | Crawford, IA | 11.0 | 60 | $500,000 | ||
| June 29 | 1:20 PM CDT | F2 | Boone, IA | 34.1 | 100 | 85 | $11 million | |
| June 29 | 1:43 PM CDT | F1 | Dallas, IA | 2.0 | 40 | $250,000 | ||
| June 29 | 1:50 PM CDT | F1 | Marshall, IA | 1.0 | 50 | $20,000 | ||
| June 29 | 3:40 PM CDT | F1 | Mercer, IL | 1.0 | 30 | $10,000 | ||
| June 29 | 3:50 PM CDT | F0 | Seward, NE | 0.2 | 50 | |||
| June 29 | 3:50 PM CDT | F0 | Warren, IA | 0.1 | 30 | |||
| June 29 | 4:08 PM CDT | F0 | Warren, IL | 1.0 | 30 | $2,000 | ||
| June 29 | 4:09 PM CDT | F1 | Fulton, IL | 5.0 | 400 | $10,000 | ||
| June 29 | 4:20 PM CDT | F1 | Knox, IL | 3.0 | 200 | 1 | $2.0 million | |
| June 29 | 4:22 PM CDT | F1 | Fulton, IL | 1.5 | 100 | $670,000 | ||
| June 29 | 4:35 PM CDT | F1 | Henderson, IL | 1.0 | 100 | $10,000 | ||
| June 29 | 4:43 PM CDT | F0 | Warren, IA | 0.2 | 30 | |||
| June 29 | 4:45 PM CDT | F1 | Tazewell, IL | 8.5 | 100 | $1.0 million | ||
| June 29 | 5:30 PM CDT | F0 | Sangamon, IL | 0.1 | 30 | |||
| June 29 | 5:36 PM CDT | F0 | Sangamon, IL | 0.5 | 40 | $130,000 | ||
| June 29 | 5:58 PM CDT | F0 | Champaign, IL | 0.6 | 30 | |||
| June 29 | 6:34 PM CDT | F1 | Jackson, KS | 1.0 | 30 | $70,000 | ||
| June 29 | 7:05 PM EST | F0 | Clay, IN | 1.0 | 80 | $30,000 | ||
| June 29 | 7:10 PM CDT | F0 | Pottawatomie, KS | 1.0 | 50 | |||
| June 29 | 7:20 PM CDT | F1 | Fayette, IL | 0.2 | 80 | $80,000 | ||
| June 29 | 7:36 PM CDT | F0 | Jefferson, KS | 0.1 | 30 | |||
| June 29 | 8:45 PM EDT | F0 | Tuscarawas, OH | 4.0 | 80 | $10,000 | ||
| June 29 | 8:24 PM CDT | F0 | Osage, KS | 0.2 | 30 | |||
| June 29 | 8:46 PM CDT | F0 | Osage, KS | 0.2 | 30 | |||
| June 29 | 9:27 PM CDT | F0 | Osage, KS | 0.2 | 30 |
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.