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EF1 tornado in Marion County, Arkansas

Tornado April 30, 2010 · Marion County, Arkansas

EF1
Rating
20.5 mi
Whole path
100 yd
Path width
$120K
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

An EF1 tornado caused roof and siding damage to six homes at Price Place. Numerous trees were uprooted or snapped. The tornado exited Marion County, Arkansas, north-northeast of Price Place and crossed into Ozark County, Missouri, south-southeast of Pontiac.

The wider storm

Moisture from the Gulf of Mexico surged into Arkansas at the end of April, so conditions in the state became warm and humid. On the 30th, a strong area of low pressure aloft approached from the west, resulting in the development of thunderstorms. Wind shear, a change in wind direction and speed with height, was present. This created a favorable environment for the formation of tornadoes.

Began near Price Place (36.4877, -92.6096).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 223343. Narratives are written by the National Weather Service forecast office that issued the report.

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