EF1 tornado, Sunbright to Huffman, Tennessee, April 2, 2024

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

April 2, 2024

Touchdown

5:20 PM EDT (21:20 UTC)

Lifted

5:25 PM EDT (21:25 UTC)

On the ground

5 minutes

Path length

2.9 miles (4.6 km)

Path width

150 yards (137 m)

Deaths

0

Injuries

0

Property damage

$10,000

County

Morgan County

Touchdown point

36.242, -84.672

Lift-off point

36.267, -84.632

Record number

2404021520-01

1 damage points were recorded along this path by NWS MRX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 62 mph.

• Metal roofing in field with a few trees down

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

A strong low pressure system, complete with a sweeping cold front, generated thunderstorms across Tennessee and the wider region. One discrete supercell thunderstorm produced a tornado in the northern portions of the Cumberland Plateau in East Tennessee.

The tornado began near Summers Hill Road and Deer Lodge Highway producing EF-1 damage in Downtown Sunbright with damage to numerous residential and commercial structures. The tornado continued northeast across White Oak Creek crossing the railroad tracks near the intersection of Dynatex Rd and Raymond Webb Road. There was damage to some metal building structures, hardwood trees, and barns in this area. Primary structure damage along the path of the tornado was uplift, peeling, and partial removal of roofs. The tornado re-intensified and tracked along Mill Creek Road producing damage to several homes and barns before the tornado dissipated near Davis Road.

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

13 minutes of warning. NWS MRX issued a tornado warning for this county at 21:07 UTC, 13 minutes before the tornado touched down, in force until 21:39 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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 20:01 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.

Oneida Scott (SCX), 23 km from the path, in the two hours either side.

From the Iowa Environmental Mesonet's archive of airport observations.

The Knoxville radar (KMRX), 113 km away, was scanning. The volume nearest the touchdown began at 21:19 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 2024 tornado in TennesseeEvery tornado in Tennessee since 1950Warnings in force in Tennessee nowThe forecast where you are

68 more were confirmed in the United States that day.

All 69 of them

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.