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F1 tornado in Greene County, Illinois

Tornado March 12, 2006 · Greene County, Illinois

F1
Rating
86.3 mi
Whole path
100 yd
Path width
22
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.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

A second tornado formed 0.75 miles south of the Calhoun Green County tornado approximately 2.0 miles southwest of Barrow at 7:20 pm CST. This tornado initially damaged a few machine sheds and grain silos west of Highway 106 then traveled through the town of Barrow injuring 2 people, destroying two house trailers and damaging a number of homes in town. The second tornado continued to parallel the first tornado then dissipated near the intersection of County Roads 2550E and 2750N or 1.0 mile east northeast of Barrow. The damage width of this tornado was approximately 100 yards and total damage length was 3.5 miles. The damage associated with this tornado was rated F1. A witness in the town of barrow saw the first tornado and this one on the ground at the same time.

Began near Barrow (39.4833, -90.4333).

Source: NOAA Storm Events Database, event 5496086. Narratives are written by the National Weather Service forecast office that issued the report.

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