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EF1 tornado in Dubois County, Indiana

Tornado October 18, 2007 · Dubois County, Indiana

EF1
Rating
1.9 mi
Path length
125 yd
Path width
$5K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 125 yards (0.07 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 door of a house was blown out about four miles northeast of Ferdinand, near the start of the tornado path. A barn was damaged about a half mile south of Kyana, near the end of the damage path. Over 100 large oak trees were snapped off or uprooted in the Ferdinand Forest.

The wider storm

A cold front with strong upper level support collided with a very moist air mass over the lower Ohio Valley. Widespread severe thunderstorms resulted, along with three confirmed tornadoes in south central Indiana. The severe storms and tornadoes produced property damage, widespread areas with downed trees and power lines, and some large hail.

Began near St Marks (38.2725, -86.8058).

Other tornadoes from the same storm system

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

EF3 Clark CountyEF1 Perry County

Source: NOAA Storm Events Database, event 62342. Narratives are written by the National Weather Service forecast office that issued the report.

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