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F1 tornado in La Salle County, Illinois

Tornado April 20, 2004 · La Salle County, Illinois

F1
Rating
1.5 mi
Path length
30 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

NOAA recorded where this tornado touched down but not where it lifted, so it appears as a point. 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

The tornado began in an open area west of town. It knocked over a camper at a house, snapped pine trees and blew over a shed. The tornado struck a detached garage, completely destroying it. Trees were also damaged.

Began near Wedron (41.4333, -88.8000).

Other tornadoes from the same storm system

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

F3 La Salle County 8 deadF2 Kankakee CountyF1 Kankakee CountyF1 Will CountyF0 La Salle CountyF0 Ford CountyF0 Ford CountyF0 Kankakee CountyF0 Will CountyF0 Grundy County

Source: NOAA Storm Events Database, event 5390601. Narratives are written by the National Weather Service forecast office that issued the report.

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