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F4 tornado in Daviess County, Missouri

Tornado May 29, 2004 · Daviess County, Missouri

F4
Rating
16.0 mi
Path length
800 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 800 yards (0.45 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F4 means. This tornado was rated on Fujita’s original scale, used until 2007. F4 meant devastating damage: well-built houses levelled; the scale paired it with winds of 207–260 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

Large F4 tornado crossed into Daviess county from Dekalb county at 2135 and then crossed into Harrison county at 2150. Tornado stayed in rural areas of the Grand River flood plain.

Began near Pattonsburg (39.9500, -94.2667).

Other tornadoes from the same storm system

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

F4 De Kalb County 3 deadF4 Harrison CountyF3 Platte CountyF2 De Kalb CountyF1 De Kalb CountyF1 Clinton CountyF0 De Kalb CountyF0 De Kalb CountyF0 Grundy CountyF0 Harrison CountyF0 Buchanan CountyF0 Clinton County

Source: NOAA Storm Events Database, event 5400526. Narratives are written by the National Weather Service forecast office that issued the report.

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