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F0 tornado in Union County, South Dakota

Tornado August 17, 2001 · Union County, South Dakota

Rating

1.6 mi

Whole path

50 yd

Path width

Injuries

$3.0M

Damage as recorded

NOAA records this tornado county by county. Its path ran through Dakota County, Nebraska → Union County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

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

A brief tornado caused no reported damage.

Began near Mc Cook Lake (42.5000, -96.5000).

Source: NOAA Storm Events Database, event 5265284. Narratives are written by the National Weather Service forecast office that issued the report.

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