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EF1 tornado in Brown County, Ohio

Tornado February 25, 2018 · Brown County, Ohio

EF1
Rating
4.9 mi
Path length
300 yd
Path width
$65K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 300 yards (0.17 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 tornado is first believed to have touched down near Lucas Road, about one mile northeast of Hamersville. More significant damage was observed near the intersection of White Oak Valley Road and Smokey Row Road, where a well-built home suffered partial roof loss and additional loss of roofing material. At another property on White Oak Valley Road, a trailer was flipped over. Tree damage was extensive along Smokey Row Road, especially near its intersection with Vinegar Hill Road.

On New Hope-McKinley Road, about a half mile east of U.S. 68, a mobile home had its roof completely removed. Debris from this roof was observed thrown about 500 yards downstream (northeast) of its origin. Additional tree damage was observed along New Hope-White Oak Station Road.

In addition to the tornadic damage described above, the National Weather Service storm survey observed non-tornadic damage across a much wider area. This area of damage extended about 13 miles in length, stretching from far southeastern Clermont County through north central Brown County. This straight-line wind damage affected areas near Feesburg and Hamersville, and was observed on both sides of the surveyed tornadic circulation. This damage consisted of additional tree and outbuilding damage, including the destruction of a few outbuildings.

The wider storm

Strong to severe thunderstorms, with very heavy rainfall, developed ahead of a cold front.

Began near Hamersville (38.9237, -83.9639).

Other tornadoes from the same storm system

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

EF1 Clermont County

Source: NOAA Storm Events Database, event 733114. Narratives are written by the National Weather Service forecast office that issued the report.

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