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EF1 tornado in Lawrence County, Indiana

Tornado May 25, 2011 · Lawrence County, Indiana

EF1
Rating
9.9 mi
Whole path
100 yd
Path width
$215K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Orange County → Orange County → Lawrence County → Washington County → Washington County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

An EF-1 tornado crossed into Lawrence County about three miles south, southwest of Bond. This tornado then tracked northeast for approximately 1.7 miles before leaving Lawrence County about two miles southwest of Bono. The tornado then continued into Washington County. In total, this tornado was on the ground for approximately 3.2 miles before lifting. In Lawrence County, minor damage was done to a homestead and numerous trees were downed.

The wider storm

The approach of a strong low pressure system from the west set the stage for a significant severe weather outbreak across central Indiana on May 25th. Eight tornadoes touched down in central Indiana, with an additional one moving into the area from southern Indiana. In addition, widespread wind damage and large hail impacted the area. Straight line winds to over 70 mph impacted the area as well, knocking down trees, power lines, as well as damaging structures and blowing over trucks. Straight line wind damage was noted near the tornado paths as well. Hail into the 3 to 4 inch range fell from some of the storms, causing damage. The large hail stones were also blown into structures by the strong straight line winds, causing additional damage.

Began near Bond (38.6884, -86.3351).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 340390. Narratives are written by the National Weather Service forecast office that issued the report.

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