F0 tornado in Ralls County, Missouri

Tornado May 10, 2003 · Ralls County, Missouri

Rating

14.5 mi

Whole path

50 yd

Path width

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

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The path drawn at its surveyed width of 50 yards (0.03 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What F0 means. This tornado was rated on Fujita’s original scale, used until 2007. F0 meant light damage: shingles and siding peeled, gutters torn, branches broken; the scale paired it with winds of 40–72 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 tornado spawned by the Monroe County supercell crossed the extreme northwest corner of Ralls County at the Monroe/Marion/Ralls County border. The tornado moved across open farmland and did little damage other than to some trees.

Began near Hassard (39.6667, -91.7333).

Source: NOAA Storm Events Database, event 5358565. Narratives are written by the National Weather Service forecast office that issued the report.

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