F1 tornado in Greene County, Illinois

Tornado March 12, 2006 · Greene County, Illinois

Rating

86.3 mi

Whole path

75 yd

Path width

Injuries

NOAA records this tornado county by county. Its path ran through Calhoun County → Pike County → Greene County → Greene County → Greene County → Scott County → Scott County → Morgan County → Morgan County → Sangamon County → Sangamon County; the totals above are for the whole tornado.

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The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. 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 Calhoun Greene County supercell thunderstorm produced a third tornado about 0.25 mile north of the intersection of County Road 2700n and Highway 106, about 0.75 mile northwest of Barrow. This tornado was approximately 0.25 mile north of the first tornado damage track and also paralleled the first damage track. A home on a farmstead sustained minor damage while two machine sheds were destroyed. Three other machine sheds were destroyed by this tornado just south of the Greene Scott county line. The tornado then continued into Scott County. The total damage track was about 2 miles while the damage width was 75 yards. The damage associated with this tornado was F1 intensity.

Began near Barrow (39.5000, -90.4167).

Source: NOAA Storm Events Database, event 5496087. Narratives are written by the National Weather Service forecast office that issued the report.

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