F0 tornado in Kankakee County, Illinois

Tornado April 20, 2004 · Kankakee County, Illinois

Rating

3.0 mi

Path length

20 yd

Path width

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

This tornado began about 1 mile southwest of Grant Park in an open field where it was spotted by the fire department. It crossed Route 1 west of town damaging a fence. The tornado moved into town causing minor roof damage to a few homes. Part of the roof of the fire station was peeled off and a large tree fell in the yard behind the fire station. The tornado moved across an open field, then knocked down a large tree at 9000N and Route 1. There was also minor roof damage to a farm building northeast of the intersection.

Began near Grant Park (41.2167, -87.6667).

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 Ford County F0 Will County F0 Grundy County

Source: NOAA Storm Events Database, event 5390684. Narratives are written by the National Weather Service forecast office that issued the report.

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