EF1 tornado, Pettit to Pyrmont, Indiana, June 25, 2021

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 mphthis tornado

   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

EF1

Date

June 25, 2021

Touchdown

8:18 PM EDT (00:18 UTC)

Lifted

8:23 PM EDT (00:23 UTC)

On the ground

5 minutes

Path length

2.2 miles (3.5 km)

Path width

50 yards (46 m)

Deaths

0

Injuries

0

Property damage

$116,000

Counties

Tippecanoe and Carroll counties

Touchdown point

40.434, -86.709

Lift-off point

40.449, -86.674

Record number

2106251818-01

9 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.

• Convergent damage into barn with trees and farm equipment
• Tree limbs pulled east into home. Car drug southeast into circulation
• Convergent debris signature. Some debris thrown north and northwest. Roof from barn to southwest found here.
• Some large branches to se convergent into trees laying ne

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 first tornado of the episode was an EF1 with maximum winds of 95 mph and a path length of 2.17 miles, which included both Tippecanoe and Carroll Counties. It began near the intersection of 1025 E and 100 N in far Eastern Tippecanoe county. The roof on the east side of a barn was lifted and thrown about 20 yards to the southeast. Several large branches were broken off trees and thrown to the west and northwest, several being drug along the ground. A small wind mill was knocked down and pointed into the path of the tornado. Several small farm vehicles were moved or overturned. The tornado then appeared to lift briefly but may have occurred again in a field of corn before hitting a barn and house along county|line road, northeast of where it originally began. Here another roof segment was torn off a small barn and tree branches were thrown into the side of a house and a few went through windows. A car was also pulled about 5 feet. Damage at all of the locations impacted was consistent with an EF1 and winds up to 95 mph. The tornado then crossed into Carroll County.

A National Weather Service damage survey found the first tornado of the episode was an EF1 with maximum winds of 95 mph and a path length of 2.17 miles, which included both Tippecanoe and Carroll Counties. Upon the tornado crossing into Carroll County, a farm on the east side of County Line Road had a barn roof lifted and the west wall collapsed. The tornado continued on a northeast path to just north of the intersection of county road 700 S and 800 W where another farm was hit with the roof and sides of two barns thrown to the north and west. This appears to be where this tornado ended. Damage at both of these locations was consistent with an EF1 and winds up to 95|mph.

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

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

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 Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:49 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), 89 km away, was scanning. The volume nearest the touchdown began at 00:19 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.

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.