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F4 tornado in Franklin County, Illinois

Tornado December 18, 1957 · Franklin County, Illinois

Rating

28.3 mi

Whole path

300 yd

Path width

Deaths

200

Injuries

$7.5M

Damage as recorded

NOAA records this tornado county by county. Its path ran through Jackson County → Williamson County → Franklin County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 300 yards (0.17 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F4 means. This tornado was rated on Fujita’s original scale, used until 2007. F4 meant devastating damage: well-built houses levelled; the scale paired it with winds of 207–260 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 10008672. Narratives are written by the National Weather Service forecast office that issued the report.

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