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EF4 tornado in Wayne County, Nebraska

Tornado June 16, 2014 · Wayne County, Nebraska

EF4
Rating
23.9 mi
Whole path
500 yd
Path width
1
Death
20
Injuries
$14.0M
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 500 yards (0.28 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF4 means. On the Enhanced Fujita scale, EF4 is devastating damage: well-built houses levelled, consistent with estimated gusts of 166–200 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

This is a continuation of the Pilger tornado that went through Stanton and Cuming into Wayne County. Once entering the county the tornado produced violent damage at two farmsteads where the houses were completely destroyed down to the foundation. The tornado finally started to narrow and weaken as a new tornado developed to the northeast. As this occurred the tornado narrowed and accelerated to the east northeast to the south of the new tornado before finally dissipating.

The wider storm

During the early morning hours of June 16th a warm, humid and unstable airmass rapidly returned to eastern Nebraska and western Iowa. As this air returned to the region, scattered thunderstorms developed during the early morning hours and continued into early afternoon. These thunderstorms were responsible for mainly large hail, some of which was very large. These morning thunderstorms reinforced a warm front across eastern Nebraska during the afternoon. Extreme instability developed along this warm front and allowed for isolated thunderstorm development by mid afternoon, which quickly become severe. A single supercell thunderstorm went on to produce 4 violent tornadoes over the next 2 hours. Other strong and severe thunderstorms moved into northeast Nebraska in the evening and continued into the early morning hours.

Began near Altona (42.0908, -96.9310).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 514022. Narratives are written by the National Weather Service forecast office that issued the report.

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