EF0 Tornado — Multnomah, Oregon

2018-10-28 · near St Johns, Multnomah, Oregon

Event narrative

Minor tree damage was observed several locations, including at the Portland Meadows facility, on MLK Boulevard near Union Court, and at a park along NE Bridgeton Road. Three semi-truck trailers were overturned in a parking area near Marine Drive. Minor roof damage also was noted to a building southwest of the Marine Drive and 2nd Avenue intersection.

Wider weather episode

A cold front which moved through on October 27th brought a much cooler air mass in aloft, which destabilized the atmosphere enough for thunderstorm development across the area on the 28th and 29th. There was enough vertical shear in the environment for a few of theses vigorous showers and thunderstorms to start to rotate, three of which went on to produce tornadoes.

View location on OpenStreetMap → (45.5893, -122.6772)

Source: NOAA Storm Events Database, event_id 789508. Narrative written by the NWS forecast office that issued the report.