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EF1 tornado in Ozark County, Missouri

Tornado April 30, 2010 · Ozark County, Missouri

EF1
Rating
11.1 mi
Path length
1,320 yd
Path width
$875K
Damage as recorded
$25K
Crop damage
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 1,320 yards (0.75 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 EF-1 tornado with maximum winds estimated at 110 mph damaged 30 homes, some severely, along with numerous barns and other outbuildings. Hundreds of oaks trees were damaged including many that were uprooted or snapped.

The wider storm

An approaching shortwave trough and accompanying surface low tracked northeast of Arkansas and into southern Missouri. A modest instability and high shear environment with very moist airmass supported widespread convection and a few supercells. A tornadic supercell tracked northeast from north central Arkansas through Ozark and Howell counties in Missouri producing five tornadoes.

Began near Lawndale (36.6379, -92.2898).

Other tornadoes from the same storm system

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

EF1 Ozark CountyEF1 Howell County

Source: NOAA Storm Events Database, event 226358. Narratives are written by the National Weather Service forecast office that issued the report.

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