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EF0 tornado in Uintah County, Utah

Tornado June 16, 2015 · Uintah County, Utah

EF0
Rating
1.0 mi
Path length
50 yd
Path width
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 EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The supercell thunderstorm which produced strong damaging outflow winds in Daggett County moved into nearby Uintah County and spawned a funnel cloud which was observed for well over 5 minutes before the rotation made contact with the ground. The tornado remained over open country during its existence. Although the rotation was on the ground for about 9 minutes, it was estimated to have only traveled about one mile during that time. After the rotation lifted off the ground, the funnel cloud persisted for at least another 5 minutes.

The wider storm

A strong rotating thunderstorm produced damaging outflow winds in Daggett County and continued on into Uintah County where it produced a relatively long-lived but short track tornado.

Began near Dry Fork (40.7805, -109.3543).

Source: NOAA Storm Events Database, event 575007. Narratives are written by the National Weather Service forecast office that issued the report.

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