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F2 tornado in Knox County, Nebraska

Tornado June 13, 1950 · Knox County, Nebraska

F2
Rating
4.1 mi
Path length
33 yd
Path width
101
Injuries
$25K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 33 yards (0.02 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F2 means. This tornado was rated on Fujita’s original scale, used until 2007. F2 meant considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted; the scale paired it with winds of 113–157 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.

NOAA’s online database has no written narrative for tornadoes before 1996 — just the numbers above, transcribed from the original storm logs. (NOAA’s monthly Storm Data publications, which carry written accounts, begin in 1959.)

Source: NOAA Storm Events Database, event 10073784. Narratives are written by the National Weather Service forecast office that issued the report.

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