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F1 tornado in Buchanan County, Iowa

Tornado June 18, 1998 · Buchanan County, Iowa

Rating

15.0 mi

Path length

10 yd

Path width

$35K

Damage as recorded

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The path drawn at its surveyed width of 10 yards (0.01 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

Several farms sustained damage from a tornado and strong thunderstorm winds topping 75 miles an hour. Near Winthrop a grain bin, barn, and machine shed were destroyed. A man was inside the barn during the storm, but was uninjured when the barn collapsed.

Began near Brandon (42.3200, -92.0000).

Other tornadoes from the same storm system

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

F2 Buchanan County F0 Linn County F0 Cedar County

Source: NOAA Storm Events Database, event 5665972. Narratives are written by the National Weather Service forecast office that issued the report.

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