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F3 tornado in Jefferson County, Missouri

Tornado March 11, 2006 · Jefferson County, Missouri

F3
Rating
7.5 mi
Whole path
200 yd
Path width

NOAA records this tornado county by county. Its path ran through Jefferson County → Monroe County, Illinois → Monroe County, Illinois; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F3 means. This tornado was rated on Fujita’s original scale, used until 2007. F3 meant severe damage: whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned; the scale paired it with winds of 158–206 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 second Jefferson County tornado first formed about 9:42 pm CST about 8.5 miles south southeast of Festus, near Interstate 55 where it sheared off the tops of several trees. The tornado then hit a small subdivision on the east side of the highway destroying three homes. The tornado crossed Highway 61 and destroyed another home and caused one minor injury. The tornado continued northeast causing minor to moderate damage to homes and outbuildings. At it approached the Mississippi River, the tornado blew down two high power electric transmission towers. It then crossed the river into Monroe County Illinois. The Jefferson County portion of the tornado track was about 3.1 miles with a maximum width of 200 yards and a F3 rating.

Began near Festus (38.1167, -90.3333).

Source: NOAA Storm Events Database, event 5495630. Narratives are written by the National Weather Service forecast office that issued the report.

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