F0 tornado in Sanpete County, Utah

Tornado September 12, 2002 · Sanpete County, Utah

Rating

0.1 mi

Path length

10 yd

Path width

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 small tornado (F0) was observed just west of Ephraim in Sanpete County. The tornado moved slowly to the northeast over open country before dissipating. This tornado remained on the ground for only a few seconds, but the funnel cloud was visible for about 10 minutes.

Source: NOAA Storm Events Database, event 5325455. Narratives are written by the National Weather Service forecast office that issued the report.

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