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EF1 tornado in Shelby County, Missouri

Tornado March 6, 2017 · Shelby County, Missouri

EF1
Rating
18.5 mi
Path length
150 yd
Path width
1
Injury
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

Tornado touched down on County Road 503, just south of the intersection with Highway Y. A barn was destroyed in this location with the damage rated EF1. The tornado tracked to the northeast causing scattered tree and building damage. As the tornado crossed County Road 426, just west of the intersection with Highway A, it destroyed a farm outbuilding. The tornado then crossed U.S. Highway 36 and hit the South Shelby High School. The school suffered minor roof damage, a couple of storage buildings were destroyed, and the baseball field backstop was destroyed. The press box was blown off the football field bleachers and destroyed. One home just northeast of the high school had a portion of its roof blown off. Intermittent tree and farm outbuilding damage continued until about 5.2 miles northeast of Shelbina. One injury occurred. A man was cut on the forehead by flying debris and required stitches. Overall, the tornado was rated EF1 with a path length of 18.47 miles and max path width of 150 yards.

The wider storm

As a cold front moved across the region, a squall line developed and moved rapidly east across the forecast area. There were numerous reports of damaging winds, large hail and 8 tornadoes.

Began near Maud (39.6334, -92.2800).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 685091. Narratives are written by the National Weather Service forecast office that issued the report.

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