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EF3 tornado in Norton County, Kansas

Tornado June 20, 2011 · Norton County, Kansas

EF3
Rating
3.9 mi
Path length
100 yd
Path width
$350K
Damage as recorded
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 EF3 means. On the Enhanced Fujita scale, EF3 is severe damage: whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, consistent with estimated gusts of 136–165 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

Storm survey team located a four-mile track of significant damage along and just south of Road S from Road 6 to Road 10. Major damage occurred to a grove of large cottonwood trees. Nearby, a farmstead received damage to outbuildings, utility poles, with the south-facing wall of the home bowed out as a result of the tornado.

The wider storm

A strong, slow-moving low pressure system moved across northwest Kansas during the afternoon, resulting in over a dozen tornadoes, some strong and long-lived. The strongest tornadoes occurred over Graham and Norton counties. Other reports of baseball sized hail were received.

Began near Densmore (39.7377, -99.7765).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 327296. Narratives are written by the National Weather Service forecast office that issued the report.

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