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EF2 tornado in Lyon County, Iowa

Tornado June 25, 2010 · Lyon County, Iowa

EF2

Rating

13.7 mi

Whole path

450 yd

Path width

Injuries

$3.5M

Damage as recorded

NOAA records this tornado county by county. Its path ran through Lyon County → Osceola County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 450 yards (0.26 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 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

A tornado destroyed two hog confinement buildings, killing about 12 hogs, numerous outbuildings, a metal farm building, tore the roof off a house and damaged at least 6 other houses, and caused damage to other farm buildings, power lines, vehicles, and trees, before moving out of Lyon County and into Osceola County.

The wider storm

Thunderstorms produced tornadoes, one that caused considerable damage and at least two injuries along a 14 mile path, along with damaging winds, in northwest Iowa during the evening of June 25th.

Began near Little Rock (43.4400, -95.9510).

Other tornadoes from the same storm system

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

EF1 Lyon County EF1 O'brien County EF0 Osceola County EF0 Sioux County EF0 O'brien County

Source: NOAA Storm Events Database, event 245832. Narratives are written by the National Weather Service forecast office that issued the report.

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