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EF2 tornado in Seneca County, Ohio

Tornado November 5, 2017 · Seneca County, Ohio

EF2
Rating
1.1 mi
Whole path
150 yd
Path width
$350K
Damage as recorded

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

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 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 weak tornado touched downed in a field in rural Adams Township. The initial touchdown occurred east of County Road 21 about half way between Township Road 138 and County Road 38. A few trees were snapped or uprooted near the initial touchdown. The tornado then continued east as it rapidly strengthened to EF2 intensity. The tornado leveled a large barn as it approached State Route 18. Debris from the barn was found scattered across a large area including wrapped around utility poles and trees. The tornado crossed State Route 18 and lifted before reaching Township Road 183. This tornado was on the ground for just over a half mile.

The wider storm

A cold front moved across the Ohio Valley and southern Great Lakes on the afternoon of Sunday, November 5th, 2017. Unseasonably warm and humid air was in place across the region ahead of the front. The cold front gradually progressed across the Ohio Valley and thunderstorms initiated and swept east ahead of the front. The storms formed in a very strong wind field and allowed the storms to move very rapidly east at speeds of 60 to 80 mph. A large macroburst formed and swept east just south of Cleveland and produced winds in excess of 100 mph. The most concentrated damage stretched from southern Lorain County across Cuyahoga County and into northern Summit, northern Portage and southern Geauga Counties. A 105 mph thunderstorm wind gust was measured at Aurora in Portage County. In addition to the damaging winds, at least 13 tornados were reported. Three of the tornadoes reached EF2 intensity with eight EF1 tornadoes and two EF0 tornadoes. Tens of thousands of trees were downed by these storms and widespread power outages occurred. In the Cleveland area alone, over 100,000 electric customers lost power. It took several days for power to be completely restored. Dozens of homes, buildings and barns were damaged or destroyed by the tornadoes.

Began near Cooper (41.1777, -82.9741).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 725980. Narratives are written by the National Weather Service forecast office that issued the report.

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