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EF0 tornado in Clackamas County, Oregon

Tornado June 13, 2020 · Clackamas County, Oregon

EF0
Rating
2.0 mi
Path length
200 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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

A tornado occurred in Damascus, Oregon just south of Hwy 212 between SE Tong Road and SE 232nd Drive. Damage occurred to numerous trees, mostly small and medium size branches. There were 5 trees (all pine or poplar) that were either snapped off or uprooted. The most significant property damage was noted near Royer Road where a large poplar tree was uprooted from very wet soil. This tree landed on parked vehicles, significantly damaging three of them. No structural damage to homes, roofs, windows, or outbuildings was found. Note: Start and end times were estimated from a combination of radar data and timestamps on videos from several members of the public who captured the event.

The wider storm

An upper low off of the Washington coast brought showers to the area with increasing instability in the afternoon into the early evening as the upper low moves inland near the Washington and Oregon border.

Began near Damascus (45.4100, -122.4700).

Source: NOAA Storm Events Database, event 939795. Narratives are written by the National Weather Service forecast office that issued the report.

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