Tornadoes · United States · Tennessee · 2025
EF0 tornado, Sinking Cove, Tennessee, August 20, 2025
This EF0 tornado ran 0.3 miles across Franklin County on August 20, 2025, touching down at 3:47 PM CDT and reaching 100 yards wide. It killed nobody.
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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- EF0
- Date
- August 20, 2025
- Touchdown
- 3:47 PM CDT (20:47 UTC)
- Lifted
- 3:48 PM CDT (20:48 UTC)
- On the ground
- 1 minutes
- Path length
- 0.3 miles (0.4 km)
- Path width
- 100 yards (91 m)
- Deaths
- 0
- Injuries
- 0
- County
- Franklin County
- Touchdown point
- 35.005, -85.961
- Lift-off point
- 35.002, -85.960
- Record number
- 2508201447-01
The damage survey
4 damage points were recorded along this path by NWS HUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 85 mph.
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
A cluster of thunderstorms developed during the early to mid afternoon hours. One of the thunderstorms spawned a rare August tornado, knocking down numerous trees along a short path along Little Crow Creek in Southern Franklin County.
An EF-0 tornado touched down on Sinking Cove Road causing several uprooted trees. It briefly tracked south-southeast uprooting additional trees, passing across Little Crow Creek before lifting|just northwest of The Bolo Club on Sinking Cove Road where no additional tree damage was noted. Damage was assessed via drone footage taken by Jackson County Alabama Emergency Management in|coordination with Franklin County Tennessee Emergency Management.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
3 minutes of warning. NWS HUN issued a tornado warning for this county at 20:44 UTC, 3 minutes before the tornado touched down, in force until 21:01 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 19:41 UTC | 20:20 UTC | Severe Thunderstorm Warning | HUN |
| 20:37 UTC | 21:30 UTC | Severe Thunderstorm Warning | HUN |
| 20:44 UTC | 21:01 UTC | Tornado Warning | HUN |
| 20:57 UTC | 21:29 UTC | Severe Thunderstorm Warning | HUN |
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 19:58 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.
Nashville Metro, TN (KBNA), 12:00Z
8.8 hours before the tornado, 138 km from the path. August 20, 2025.
- Mixed-layer CAPE
- 250 J/kg
- Mixed-layer CIN
- -152 J/kg
- Surface CAPE
- 485 J/kg
- Mixed-layer LCL
- 1093 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 5.0 K/km
Nashville Metro, TN (KBNA), 00:00Z
3.2 hours after it, 138 km from the path. August 21, 2025.
- Mixed-layer CAPE
- 891 J/kg
- Mixed-layer CIN
- -5 J/kg
- Surface CAPE
- 2263 J/kg
- Mixed-layer LCL
- 1161 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 7.1 K/km
The radar
The Northeast Alabama radar (KHTX), 14 km away, was scanning. The volume nearest the touchdown began at 20:45 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 18:45 UTC | TSTM WND DMG | 4 Ene Estill Springs | Franklin, TN | Multiple trees were knocked down in Capitol Hill. Time estimated by radar. |
| 20:03 UTC | TSTM WND DMG | 1 Ene Decherd | Franklin, TN | Multiple trees were knocked down at 7000 Highway 50 in Decherd. Time estimated by radar. |
| 20:45 UTC | TSTM WND DMG | 12 Sse Cowan | Franklin, TN | Multiple trees down near The Bolo Club. |
| 20:47 UTC | TORNADO | 11 Sse Cowan | Franklin, TN | An EF0 tornado touched down along Sinking Cove Road and tracked to the south, crossing Little Crow Creek. Only tree damage was noted with softwoods uprooted and branches down. The tornado lasted one minute before lifting |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2025 tornado in TennesseeEvery tornado in Tennessee since 1950Warnings in force in Tennessee nowThe forecast where you are
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.