EF2 tornado, Era to Seldon, Kentucky, May 2, 2010

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 mph

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. EF2111 to 135 mphthis tornado

   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

EF2

Date

May 2, 2010

Touchdown

2:49 AM CDT (07:49 UTC)

Lifted

3:00 AM CDT (08:00 UTC)

On the ground

11 minutes

Path length

9.5 miles (15.3 km)

Path width

300 yards (274 m)

Deaths

0

Injuries

0

Property damage

$300,000

County

Christian County

Touchdown point

37.057, -87.598

Lift-off point

37.128, -87.450

Record number

1005020149-01

A surface cold front extended from the Chicago area southwestward across the eastern fringes of the St. Louis metro area to a weak low pressure center over southeast Missouri. The low ejected northeast across southern and eastern Illinois, with the trailing cold front moving east across the Lower Ohio Valley. A broken cluster of severe thunderstorms, with embedded supercells and small bow echoes, moved east-northeastward across western Kentucky. Increasing south-southwesterly low level winds brought plenty of moisture northward into the Lower Ohio Valley, aiding in sufficient destabilization for supercells. The two primary supercells of the night followed similar paths across southern parts of the Purchase area, the Lakes region, and the southern Pennyrile region. Heavy rainfall with the storms, in combination with saturated ground from the May 1 storms, produced localized flash flooding.

The highest concentrations of damage were where the tornado crossed State Route 1348 west of Crofton and Route 407 north of Crofton. Three unoccupied mobile homes were severely damaged or destroyed on Route 1348 west of Crofton. On Route 407, two mobile homes suffered moderate to major damage and a garage was levelled. The roof was peeled off one of the mobile homes. This tornado was very near the site of an EF3 tornado in Mannington just over a year earlier. One of the victims whose home was destroyed in the previous year's tornado relocated to a new spot, only to have her new home receive minor damage in this tornado. Several barns along the damage path received minor to moderate damage. Hundreds of trees were uprooted or snapped, particularly on Route 407 and nearby U.S. Highway 41. The tornado damage path began along Highway 109 and ended just after crossing the Pennyrile Parkway. The EF-2 tornado damage was near the end of the damage path along Route 407 and U.S. Highway 41, where hundreds of trees were uprooted or snapped. The average path width was 275 yards. Peak winds were estimated near 120 mph. The supercell that spawned this tornado later produced a separate brief tornado in Hopkins County.

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

19 minutes of warning. NWS PAH issued a tornado warning for this county at 07:30 UTC, 19 minutes before the tornado touched down, in force until 08:15 UTC.

The county was under a tornado watch, issued at 03:19 UTC and running to 10:00 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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 05:47 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.

Fort Campbell (Aaf) (HOP), 47 km from the path, in the two hours either side.

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

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 2010 tornado in KentuckyEvery tornado in Kentucky since 1950Warnings in force in Kentucky nowThe forecast where you are

20 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.