F0 tornado in Ford County, Illinois

Tornado April 20, 2004 · Ford County, Illinois

Rating

5.0 mi

Whole path

20 yd

Path width

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 20 yards (0.01 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F0 means. This tornado was rated on Fujita’s original scale, used until 2007. F0 meant light damage: shingles and siding peeled, gutters torn, branches broken; the scale paired it with winds of 40–72 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

A weak tornado originated in Ford County 9 NNE of Piper City and moved into Iroquois County 10.5 NNE of Piper City. This tornado moved through open farm land. There was no damage. This data is for the portion of the tornado path in Ford County.

Began near Piper City (40.8667, -88.1167).

Other tornadoes from the same storm system

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

F3 La Salle County 8 dead F2 Kankakee County F1 La Salle County F1 Kankakee County F1 Will County F0 La Salle County F0 Ford County F0 Kankakee County F0 Will County F0 Grundy County

Source: NOAA Storm Events Database, event 5390604. Narratives are written by the National Weather Service forecast office that issued the report.

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