Tornadoes · United States · Indiana · 1996

F1 tornado, Mooresville, Indiana, April 19, 1996

This F1 tornado ran 5.0 miles across Morgan and Johnson counties on April 19, 1996, touching down at 7:40 PM EST and reaching 100 yards wide. It killed nobody and injured 5, and did $4.0 million 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.

  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
April 19, 1996
Touchdown
7:40 PM EST (00:40 UTC)
Path length
5.0 miles (8.0 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
5
Property damage
$4.0 million
Counties
Morgan and Johnson counties
Touchdown point
39.620, -86.320
Lift-off point
39.620, -86.220
Record number
1132

What the Weather Service recorded

A supercell having produced golfball to baseball size hail from eastern Illinois to central Indiana produced a weak tornado in the south suburbs of Indianapolis. In Morgan county the tornado destroyed 6 buildings and damaged nearly 50 others. The main damage was between Five Points and Waverly and was concentrated in the Fox Hill area.

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. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
23:36 UTC00:30 UTCTornado WarningIND

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 06:07 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), 00:00Z

0.7 hours before the tornado, 207 km from the path. April 20, 1996.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 1996-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1505 joules per kilogram, CIN -39, lifted condensation level 765 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, Lincoln, IL at 00:00Z on 1996-04-20The 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 213 square meters per square second, 0 to 6 km bulk shear 52 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
1505 J/kg
Mixed-layer CIN
-39 J/kg
Surface CAPE
2052 J/kg
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
52 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
268 m²/s²
Significant tornado parameter
2.4
Supercell composite
11.3
0-3 km lapse rate
7.0 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 12:00Z

11.3 hours after it, 207 km from the path. April 20, 1996.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 1996-04-20Temperature 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 -83262, lifted condensation level 1561 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, Lincoln, IL at 12:00Z on 1996-04-20The 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 100 square meters per square second, 0 to 6 km bulk shear 61 knots.1939587897117136156Sfc1 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
-83262 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1561 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
31 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1996 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

The other tornadoes of April 19, 1996

59 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 194:20 PM CDTF0Coles, IL0.1100
April 194:35 PM CDTF0Coles, IL0.1100
April 195:10 PM CDTF1Edgar, IL2.0440
April 195:12 PM CDTF0Edgar, IL1.0220
April 195:40 PM CDTF1LaSalle, IL0.550
April 195:44 PM CDTF0Scott, IL2.0100
April 195:45 PM CDTF0Monroe, IL1.050$2,000
April 196:00 PM CDTF0Henderson, IL5.050$4.0 million
April 196:07 PM CDTF2Mason, IL9.02501
April 196:10 PM CDTF1Henderson, IL3.5100$4.0 million
April 196:10 PM CDTF0Peoria, IL4.0100
April 196:17 PM CDTF1Mason, IL9.0250
April 196:18 PM CDTF2Morgan, IL6.08801$400,000
April 196:20 PM CDTF0Saint Clair, IL1.550$10,000
April 196:25 PM CDTF0Kankakee, IL4.020
April 196:31 PM CDTF0Morgan, IL0.1100
April 196:32 PM CDTF0Sangamon, IL4.0330$250,000
April 196:58 PM CDTF3Logan, IL9.4880$2.0 million
April 197:00 PM CDTF0Randolph, IL1.560$1,000
April 197:00 PM CDTF0Sainte Genevieve, MO0.350
April 197:00 PM CDTF1Henry, IL3.51004$20 million
April 197:01 PM CDTF0Kankakee, IL5.020
April 197:22 PM CDTF3Macon, IL14.544029$9.0 million
April 197:30 PM CDTF0Coryell, TX0.120$4,000
April 197:35 PM CDTF2Marion, IL20.01507$7.0 million
April 197:38 PM CDTF2Hunt, TX0.550$150,000
April 197:40 PM CDTF0Bureau, IL0.110
April 197:55 PM CDTF1Piatt, IL0.350$500,000
April 197:59 PM CDTF0Randolph, IL2.070$10,000
April 198:00 PM CDTF1Piatt, IL2.03001$1.0 million
April 198:05 PM CDTF1Marion, IL3.050$70,000
April 198:10 PM CDTF0Clay, IL2.050
April 198:12 PM CDTF0Randolph, IL3.070$10,000
April 198:15 PM CDTF0Randolph, IL2.050$10,000
April 198:17 PM CDTF0Jackson, IA0.110$10,000
April 198:17 PM CDTF0Clinton, IA0.225
April 198:20 PM CDTF1Perry, IL2.5100$70,000
April 198:20 PM CDTF1Marion, IL11.580$150,000
April 198:34 PM CDTF3Champaign, IL4.022012$9.0 million
April 198:50 PM ESTF1Marshall, IN1.020
April 198:55 PM CDTF3Champaign, IL2.01,500113
April 199:05 PM ESTF1Marshall, IN0.520
April 199:08 PM CDTF0Vermilion, IL0.1100
April 199:10 PM CDTF0Madison, MO0.350
April 199:15 PM CDTF3Hamilton, IL17.0400$3.2 million
April 199:30 PM CDTF3Perry, MO11.5175$5.0 million
April 199:30 PM CDTF1White, IL1.0100$1.0 million
April 199:52 PM ESTF0Kosciusko, IN0.120
April 1910:00 PM CDTF2Ripley, MO10.0100$100,000
April 1910:05 PM CDTF2Butler, MO2.575$300,000
April 1910:15 PM ESTF0Knox, IN1.050$150,000
April 1911:03 PM CDTF1Stoddard, MO0.650$700,000
April 1911:32 PM CDTF2Lake, IL2.01002$6.6 million
April 1911:40 PM CDTF2Warrick, IN2.0100$500,000
April 1911:42 PM ESTF2Pike, IN0.8100$200,000
April 1911:57 PM ESTF0Lawrence, IN1.075$100,000
April 1912:05 AM ESTF0Jackson, IN1.050$150,000
April 1912:45 AM ESTF1Bartholomew, IN1.050$250,000
April 1912:55 AM ESTF0Decatur, IN0.150

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.