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EF2 tornado in Ballard County, Kentucky

Tornado April 4, 2011 · Ballard County, Kentucky

EF2
Rating
6.4 mi
Path length
300 yd
Path width
1
Injury
$700K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 300 yards (0.17 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

Near Hinkleville, a man was trapped in a 60 by 80 foot farm building that was destroyed. He received four broken ribs. The roof was removed from a two-story house, and the garage was levelled. Several other homes sustained roof damage, including one with partial roof loss. Two mobile homes were overturned. Two large chicken barns about 45 feet wide by 250 yards long were destroyed, and two others were heavily damaged. Numerous farm buildings were destroyed, along with some grain bins. Dozens of large trees were snapped or uprooted. A mobile home was shifted slightly off its foundation at the end of the track along the McCracken County line. While damage was predominantly caused by the tornado, some damage southeast of Hinkleville was caused by straight-line winds. Peak winds were near 120 mph. Average path width was 250 yards.

The wider storm

Thunderstorms gradually intensified along and ahead of a cold front from Arkansas into western Kentucky. The storms occurred in a moist and strongly sheared environment, resulting in a combination of line segments and supercells which evolved into a quasi-linear convective system. There were isolated tornadoes, along with a couple small swaths of damaging winds.

Began near Slater (37.0200, -88.9800).

Other tornadoes from the same storm system

4 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 288327. Narratives are written by the National Weather Service forecast office that issued the report.

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