Tornadoes · United States · Indiana · 2016

EF3 tornado, Kokomo Ruzicka Arpt to Vermont, Indiana, August 24, 2016

From Kokomo Ruzicka Arpt to Vermont, this EF3 tornado ran 8.6 miles across Howard County on August 24, 2016, touching down at 3:20 PM EDT and reaching 300 yards wide. It killed nobody and injured 20, and did $10 million of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mph

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

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 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. EF3136 to 165 mphthis tornado

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 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
EF3
Date
August 24, 2016
Touchdown
3:20 PM EDT (19:20 UTC)
Lifted
3:34 PM EDT (19:34 UTC)
On the ground
14 minutes
Path length
8.6 miles (13.9 km)
Path width
300 yards (274 m)
Deaths
0
Injuries
20
Property damage
$10 million
County
Howard County
Touchdown point
40.461, -86.188
Lift-off point
40.499, -86.032
Record number
1608241320-01

The damage survey

53 damage points were recorded along this path by NWS IND, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF3. The highest wind the damage implies is 152 mph.

  • located on north side of tornado. looks like wind circulation went in directly from the front, peeling the ceiling back, allowing walls to collapse inward.
  • approx 10 homes destroyed.
  • truck originated in driveway moved about 10 ft.
  • tops of trees sheared next to damaged home. to the east, flattened corn pointing northward and northeast indicating tornado continued northeast.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

Multiple supercell thunderstorms produced a total of 7 tornadoes across central Indiana on August 24th. Significant damage occurred in Kokomo, where 20 people suffered injuries. There were no fatalities from this event. The 7 tornadoes ratings were: 1 EF-3, 1 EF-2, 2 EF-1s and 3 EF-0s.||Four additional tornadoes were reported in northern Indiana.

This EF-3 tornado, with maximum wind speeds of 152 mph, caused significant structural damage to homes and businesses across the south side of Kokomo. A Starbucks building was destroyed near Markland Mall. According to WTHR13, at least 80 homes were destroyed. Out of the 1,000 total homes damaged, about 170 of them sustained major damage. Much of the Park Place Apartments were damaged or destroyed. Numerous trees were downed as well.

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

The warnings

30 minutes of warning. NWS IND issued a tornado warning for this county at 18:50 UTC, 30 minutes before the tornado touched down, in force until 19:30 UTC.

The county was under a tornado watch, issued at 19:10 UTC and running to 00:54 UTC.

Issued (UTC)ExpiredProductOffice
18:50 UTC19:30 UTCTornado WarningIND
19:10 UTC00:54 UTCTornado WatchIND
19:22 UTC20:00 UTCTornado WarningIND
21:28 UTC22:15 UTCTornado WarningIND
22:00 UTC22:30 UTCTornado WarningIND
22:12 UTC22:30 UTCTornado WarningIND
22:28 UTC22:56 UTCTornado WarningIND
22:32 UTC23:00 UTCTornado WarningIND
22:53 UTC23:45 UTCTornado WarningIND
22:59 UTC23:30 UTCTornado WarningIND
23:46 UTC00:00 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 Marginal Risk. The outlook in force was issued at 16:20 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

7.3 hours before the tornado, 214 km from the path. August 24, 2016.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2016-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 550 joules per kilogram, CIN -64, lifted condensation level 741 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 12:00Z on 2016-08-24The 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 255 square meters per square second, 0 to 6 km bulk shear 34 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
550 J/kg
Mixed-layer CIN
-64 J/kg
Surface CAPE
503 J/kg
Mixed-layer LCL
741 m above ground
0-6 km bulk shear
34 kt
0-1 km bulk shear
29 kt
0-1 km storm-relative helicity
255 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.0
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 00:00Z

4.7 hours after it, 214 km from the path. August 25, 2016.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2016-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1614 joules per kilogram, CIN -40, lifted condensation level 1132 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 2016-08-25The 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 60 square meters per square second, 0 to 6 km bulk shear 42 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
1614 J/kg
Mixed-layer CIN
-40 J/kg
Surface CAPE
3027 J/kg
Mixed-layer LCL
1132 m above ground
0-6 km bulk shear
42 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.1
0-3 km lapse rate
6.2 K/km

Open this sounding in Storm Lab

The radar

The Indianapolis radar (KIND), 87 km away, was scanning. The volume nearest the touchdown began at 19:19 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
19:20 UTCTORNADOKokomoHoward, INTORNADO ON WEST SIDE OF KOKOMO.
19:21 UTCTORNADOKokomoHoward, INSTARBUCKS DESTROYED. NO INJURIES.
19:32 UTCTORNADO4 Ne KokomoHoward, INLARGE TORNADO STILL ON THE GROUND. LOCATION APPROXIMATE.
19:46 UTCTORNADOKokomoHoward, INSTARBUCKS DESTROYED. MARKLAND MALL SUBSTANTIAL DAMAGE. REPORTED BY KOKOMO RADIO STATION.
20:17 UTCTORNADOKokomoHoward, INSTARBUCKS DESTROYED. NO INJURIES.
20:45 UTCTORNADO1 N ArcanaGrant, INSHERIFF'S DEPARTMENT CONFIRMED TORNADO WAS ON GROUND AT INTERSECTION OF SR 18 AND SR 5.
21:03 UTCTORNADO1 N RollWells, INCONFIRMED TORNADO ON GROUND NORTH OF SR 18.
21:46 UTCTORNADO4 Nw BurlingtonCarroll, INLOCATED AT COUNTY ROADS 400 EAST AND 250 SOUTH
22:11 UTCWALL CLOUD3 Nnw KokomoHoward, INVIEWED FROM COUNTY ROAD NORTH 80 WEST AND COUNTY ROAD WEST 350 NORTH
22:15 UTCTORNADO1 Nnw PeruMiami, INCONFIRMED TORNADO ON US 24.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2016 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

The other tornadoes of August 24, 2016

21 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 242:38 PM EDTEF2Montgomery, IN5.4125$75,000
August 244:18 PM EDTEF0Marion, IN0.4100$15,000
August 244:59 PM EDTEF0Wells, IN0.020
August 245:27 PM EDTEF3Allen, IN5.2500
August 245:40 PM EDTEF1Carroll, IN17.1100$57,000
August 245:49 PM EDTEF1Adams, IN7.650
August 245:53 PM EDTEF2Paulding, OH4.4250
August 246:13 PM EDTEF0Miami, IN0.120
August 246:28 PM EDTEF2Defiance, OH2.6400
August 246:30 PM EDTEF1Van Wert, OH5.575
August 246:41 PM EDTEF0Van Wert, OH1.525
August 246:48 PM EDTEF1Henry, OH2.8150
August 246:51 PM EDTEF0Van Wert, OH4.740
August 246:58 PM EDTEF0Howard, IN0.775$10,000
August 247:00 PM EDTEF1Howard, IN1.550$20,000
August 247:04 PM EDTEF0Van Wert, OH2.520
August 247:16 PM EDTEF0Howard, IN3.075$16,000
August 247:19 PM EDTEF0Henry, OH0.020
August 247:26 PM EDTEF0Putnam, OH1.225
August 247:48 PM EDTEF0Putnam, OH0.615
August 249:06 PM EDTEF0Wood, OH0.020$35,000

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.