EF1 tornado, Athens to Canaanville, Ohio, August 12, 2023

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

August 12, 2023

Touchdown

7:33 PM EDT (23:33 UTC)

Lifted

7:43 PM EDT (23:43 UTC)

On the ground

10 minutes

Path length

2.3 miles (3.7 km)

Path width

300 yards (274 m)

Deaths

0

Injuries

0

Property damage

$10,000

County

Athens County

Touchdown point

39.288, -82.067

Lift-off point

39.301, -82.027

Record number

2308121733-01

9 damage points were recorded along this path by NWS RLX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 100 mph.

• Additional tree damage noted in the woods north of Kincade Rd but no further damage found.

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

On the afternoon of August 12th, strong to severe thunderstorms were strongly possible as a result of an encroaching cold front and hot and muggy conditions festering over southeast Ohio. While most of the severe storms occurred east of the Ohio River, there was one storm that produced an EF1 tornado in Athens County during the peak of the afternoon. An NWS Storm Survey team assessed the damage and determined that the tornado tracked just over two miles through the county before lifting back into the mesocyclone. Noted damage included snapped and uprooted trees and power poles along the path.

An EF1 tornado with maximum winds up to 100 mph touched down near Angel Ridge Road in Athens County. The tornado tracked east-northeast crossing Gura Road, Long Run Road, and North Coolville Ridge Road before lifting just past Kincade Road. Damage was limited to snapped and uprooted trees and some snapped power poles along the path, with the worst damage occurring in a 300 yard wide swath along Long Run Road. This is the seventh documented tornado in Athens County and the first since 2018.

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

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 19:59 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 Charleston,WV radar (KRLX), 113 km away, was scanning. The volume nearest the touchdown began at 23:34 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 2023 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

15 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.