EF1 tornado, Jericho to Brownings Corner, Kentucky, April 8, 2020

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 8, 2020

Touchdown

10:47 PM EDT (02:47 UTC)

Lifted

11:07 PM EDT (03:07 UTC)

On the ground

20 minutes

Path length

19.2 miles (30.9 km)

Path width

400 yards (366 m)

Deaths

0

Injuries

0

Property damage

$45,000

Counties

Grant and Pendleton counties

Touchdown point

38.675, -84.552

Lift-off point

38.593, -84.215

Record number

2004082047-01

Thunderstorms developed ahead of an advancing cold front which crossed east through the region.

Damage occurred to numerous homes and outbuildings. Damage and destruction also occurred to large mature trees.

The tornado touched down 3.5 miles east of the Mt. Zion area, on the western fringe of Williamstown Lake, along Peaceful Hollow Road. Several outbuildings and barns sustained roof damage, as well as some roof damage to homes.||The tornado then moved into Pendleton County at 21:50 EST and ended in Pendleton County near Milford Road at 22:07 EST.

The tornado initially touched down 3.5 miles east of the Mt. Zion area, on the western fringe of Williamstown Lake, along Peaceful Hollow Road at 21:47 EST.||The tornado then moved into Pendleton County at 21:50 EST, with the first evidence of tornadic damage in Pendleton County occurring along Hogg Ridge Road. The tornado moved east-southeast, producing damage along its path that impacted West Highway 22, Morgan 4 Oaks Road, Liberty Ridge Road, U.S. 27, and McKinneysburg Road. Damage included the destruction of several barns as well as numerous trees and power poles being snapped or knocked down. The end of the damage occurred along Milford Road, where debris from a destroyed barn was thrown into an adjacent field. Based on this|damage, this tornado produced winds of around 100 mph, and was rated an EF-1 on the Enhanced Fujita Scale.

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

19 minutes of warning. NWS ILN issued a tornado warning for this county at 02:28 UTC, 19 minutes before the tornado touched down, in force until 03:00 UTC.

The county was under a tornado watch, issued at 23:25 UTC and running to 03:41 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 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 01:04 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.

Georgetown (27K), 45 km from the path, in the two hours either side.

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

The Cincinnati radar (KILN), 100 km away, was scanning. The volume nearest the touchdown began at 02:48 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 2020 tornado in KentuckyEvery tornado in Kentucky since 1950Warnings in force in Kentucky nowThe forecast where you are

24 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.