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EF2 tornado in Wayne County, Iowa

Tornado March 6, 2017 · Wayne County, Iowa

EF2
Rating
14.9 mi
Whole path
250 yd
Path width
$2.0M
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 250 yards (0.14 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

NWS storm survey confirmed a tornado touched down about six miles southwest of Seymour in Wayne County where several trees sustained major damage and several farmsteads were damaged. The tornado then tracked northeast through rural sections of Wayne County and produced sporadic tree damage. The tornado then moved into the south side of Seymour and produced significant damage to

several homes and structures with the partial collapse of walls and roof structures and widespread tree damage. A brick school building also sustained major damage to its roof and walls. After doing additional damage to residences to the northeast of the school, it exited Seymour and crossed into Appanoose County.

The wider storm

A low pressure system developed off the Rockies in the Wyoming, Nebraska, South Dakota region and deepened as it moved eastward through South Dakota through the day on the March 6th. Southerly flow had already established itself and was bringing up Gulf of Mexico moisture into the Plains. A dry line also developed out ahead of the parent cold front, sparking initial storms in eastern Nebraska during the afternoon hours. Storms relatively quickly developed into a linear system, though a few isolated storms developed out ahead of the main line and proceeded to produce severe hail. As the line of storms progressed eastward through Iowa, they produced numerous severe hail and damaging wind reports. Additionally, a few tornadoes developed along the line, producing damage primarily in central and southern Iowa.

Began near Genoa (40.6174, -93.2085).

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 676810. Narratives are written by the National Weather Service forecast office that issued the report.

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