EF0 tornado, Carrollton to Sharon, Indiana, June 25, 2021

1. EF065 to 85 mphthis tornado

   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 mph

   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.

Rating

EF0

Date

June 25, 2021

Touchdown

9:09 PM EDT (01:09 UTC)

Lifted

9:12 PM EDT (01:12 UTC)

On the ground

3 minutes

Path length

2.4 miles (3.8 km)

Path width

200 yards (183 m)

Deaths

0

Injuries

0

Property damage

$25,000

County

Carroll County

Touchdown point

40.532, -86.426

Lift-off point

40.559, -86.403

Record number

2106251909-01

8 damage points were recorded along this path by NWS IND, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 95 mph.

• Tree limbs pulled east into home. Car drug southeast into circulation
• Some large branches to se convergent into trees laying ne
• Some debris to sw from trees pointing north
• Trees in woods large branches down or topped

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

A small vort max sliding through a mildly cyclonic mid-level flow and above a warm frontal zone induced a slow moving supercell in the evening, which spawned an EF1 and an EF0 tornado.

A National Weather Service damage survey found the second tornado of the event was spawn from the same supercell. The storm had continued moving northeast across large expanses of corn and bean fields as well as wooded areas. No additional damage could be found from the ground until just east of county road 500 E along 100 S where the second tornado began and brushed the corner of a wooded lot and home. This tornado was an EF0 with winds of 70 to 74 mph and a path length of 2.35 miles. The damage was primarily snapping of the tops of trees along its path. The first damage found included several trees that were snapped towards the top with large limbs broken and brought down to the northeast, but a few large limbs were convergent into the path of this tornado and pointing southeast. Marks on the ground indicated some of the larger limbs had been pulled southeast. This tornado again appeared to dissipate but quickly start again multiple times along its path. This is consistent with spotter and|eyewitness reports. Several points surveyed showed mainly tree damage and some minor shingle or siding damage to homes. This tornado ended just south of county road 100 N about halfway between 600 E and SR 18 in Carroll County.

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

16 minutes of warning. NWS IND issued a tornado warning for this county at 00:53 UTC, 16 minutes before the tornado touched down, in force until 01:30 UTC.

The county was under a severe thunderstorm watch, issued at 23:47 UTC and running to 03:21 UTC.

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 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 00:57 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 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.

The Indianapolis radar (KIND), 94 km away, was scanning. The volume nearest the touchdown began at 01:08 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.

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

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

The live radar over the trackEvery 2021 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

8 more were confirmed in the United States that day.

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.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.