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EF1 tornado in Wirt County, West Virginia

Tornado September 16, 2010 · Wirt County, West Virginia

EF1
Rating
0.7 mi
Path length
175 yd
Path width
$75K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 175 yards (0.10 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

Tree damage occured along portions of State Route 5 about 3.5 miles eastsoutheast of Palestine. Numerous hardwoods were topped halfway down their trunks. Several very large softwoods were either topped or uprooted. The orientation of the damage conformed to a converging wind flow. The maximum wind gust of 100 mph was estimated. The maximum width was around 175 yards. A brick chimney became detached from a house and collapsed. A few small outbuildings were also destroyed. Power outages were common.

The wider storm

A cold front, in tandem with strong mid and upper level forcing, produced a severe weather outbreak in southeast Ohio into extreme western West Virginia during the late afternoon and evening of Thursday the 16th. The setup featured a 45 knot mid level flow and a 95 knot upper level jet. Matter of fact, a larger area of showers, associated with a warm front, had moved across southeast Ohio and West Virginia during the morning and midday hours. This kept the surface based instability at a minimum. However, new cells formed further west during the mid afternoon over western Ohio. It was this new cluster of convection that would intensify due to the strong mid and upper level dynamics. Several of the new cells formed and intensified on the southern or southwestern flank of the overall larger area of showers and thunderstorms. This area of convection stretched further to the northeast into eastern Ohio and western Pennsylvania. This allowed an unimpeded low level moisture inflow into the new development. Surface dew points ahead of the cold front reached into the mid 60s.

Most of the severe thunderstorms exhibited strong rotation, resulting in the spawning of 5 tornadoes. Four of these 5 tornadoes were in southeast Ohio. One of the 4 Ohio tornadoes crossed from Fairfield County into western Perry County. Another 1 of the 4 crossed from Perry into northwestern Morgan County. One tornado patch was solely in Athens County. Finally, the last of the 4 tornadoes in Ohio crossed the Ohio River from northeastern Meigs County into southern Wood County in West Virginia. This tornado was the strongest and resulted in a fatality on the West Virginia side of the Ohio River. The last direct death from a tornado in West Virginnia was back in June of 1982. Finally, the last short tornado path in this outbreak was solely in western West Virginia, located in Wirt County.

Began near Enterprise (39.0184, -81.3504).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 255628. Narratives are written by the National Weather Service forecast office that issued the report.

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