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EF1 tornado in Muhlenberg County, Kentucky

Tornado April 4, 2011 · Muhlenberg County, Kentucky

EF1

Rating

7.1 mi

Path length

150 yd

Path width

$100K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

The tornado struck first at a mobile home park on U.S. Highway 62 on the south side of Greenville. One mobile home was overturned and destroyed. Three people were injured. Two of the injuries were slight. Another mobile home was blown off its foundation. A camper trailer was overturned. Several houses sustained shingle damage. Trees and limbs were blown down along the entire path. The average path width was 100 yards. Peak winds were estimated near 109 mph.

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 Greenville (37.1855, -87.1800).

Other tornadoes from the same storm system

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

EF2 Christian County EF2 Ballard County EF1 Ballard County EF0 McCracken County

Source: NOAA Storm Events Database, event 288318. Narratives are written by the National Weather Service forecast office that issued the report.

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