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EF2 tornado in Delaware County, Indiana

Tornado November 5, 2017 · Delaware County, Indiana

EF2

Rating

30.7 mi

Whole path

600 yd

Path width

Injury

$90K

Damage as recorded

NOAA records this tornado county by county. Its path ran through Delaware County → Blackford County → Jay County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 600 yards (0.34 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

A long track, EF2 tornado, with winds estimated at 134 mph, started northeast of Eaton in Delaware County then traveled into Blackford County and then into Ohio. Mainly tree damage in Delaware County until the Delaware-Blackford County border, where a Quonset hut was collapsed. Several tractors and a vintage Harley Davidson were inside and heavily damaged. Winds in this location before pushing into Blackford County were estimated at 120 mph. More significant damage was done farther north along the path.

The wider storm

Waves of low pressure moved along a strong cold front on November 5th, generating strong to severe thunderstorms during the afternoon and evening hours. Strong 850mb winds brought up plenty of moisture for the storms to work with and the storms produced some tornadoes, damaging winds, large hail, and flooding.

Began near Eaton (40.3491, -85.3483).

Other tornadoes from the same storm system

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

EF1 Lawrence County EF1 Delaware County

Source: NOAA Storm Events Database, event 729252. Narratives are written by the National Weather Service forecast office that issued the report.

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