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EF1 tornado in Jackson County, Illinois

Tornado March 23, 2012 · Jackson County, Illinois

EF1
Rating
7.5 mi
Path length
125 yd
Path width
$75K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 125 yards (0.07 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The tornado began 3.5 miles northwest of De Soto along Truax Traer Road and traveled northeast to 3.5 southeast of DuQuoin. Dozens of trees were uprooted and snapped. One barn was destroyed and several sheds and carports were damaged. A few homes had minor damage to siding and roof shingles. The tornado was observed and recorded by numerous spotters and citizens. Peak winds were about 90 mph.

The wider storm

A large upper level low pressure system moved east from Missouri into an area of warm, moist air with dewpoint temperatures in the 60s. Strong mid level winds helped to produce severe thunderstorms, including supercells.

Began near Dowell (37.9472, -89.1812).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 374197. Narratives are written by the National Weather Service forecast office that issued the report.

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