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F1 tornado in Sumner County, Kansas

Tornado May 3, 1999 · Sumner County, Kansas

F1
Rating
12.0 mi
Path length
440 yd
Path width
$250K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 440 yards (0.25 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F1 means. This tornado was rated on Fujita’s original scale, used until 2007. F1 meant moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken; the scale paired it with winds of 73–112 mph, figures later judged too high, especially toward the top of the scale, and revised downward in the Enhanced Fujita scale. Ratings then, as now, came from the damage.

What the National Weather Service wrote

Minor roof damage inflicted to a business in Mayfield. Just north of Mayfield, a metal outbuilding was partially unroofed with minor roof damage inflicted to the adjacent house. The tornado then hit a farmstead where windows were broken on the south and west sides of the house, a satellite dish tilted over, two metal grain bins removed and a metal barn damaged when one of the grain bins was thrown into it. Near termination, major damage was inflicted to two mobile homes, one of which was thrown about 50 feet and destroyed on impact with a row of trees.

Began near Mayfield (37.2300, -97.5800).

Other tornadoes from the same storm system

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

F4 Sedgwick County 6 deadF1 Barton CountyF1 Reno CountyF1 Marion CountyF0 Rice CountyF0 Saline CountyF0 Ellsworth CountyF0 McPherson CountyF0 Lincoln CountyF0 Butler County

Source: NOAA Storm Events Database, event 5690092. Narratives are written by the National Weather Service forecast office that issued the report.

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