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EF0 tornado in Lincoln County, Arkansas

Tornado July 30, 2009 · Lincoln County, Arkansas

EF0

Rating

1.9 mi

Path length

150 yd

Path width

$30K

Damage as recorded

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 EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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

All of the damage from this tornado occurred on the farm at Cummins Prison, well away from the prison building itself. A farm shop building had a metal door blown in and a metal wall peeled back. Quite a few trees had large limbs torn off, and a few trees were uprooted altogether.

The wider storm

During the morning of the 30th, a large cluster of thunderstorms known as a Mesoscale Convective System (MCS) moved into Arkansas from the southwest. The MCS weakened, leaving behind a Mesoscale Convective Vortex (MCV) or small area of circulation aloft. During the afternoon, this MCV helped to trigger new storms and a few tornadoes.

Began near Cummins (34.0717, -91.5803).

Other tornadoes from the same storm system

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

EF2 Arkansas County EF1 Dallas County

Source: NOAA Storm Events Database, event 178570. Narratives are written by the National Weather Service forecast office that issued the report.

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