A November storm struck northwest Oregon on Thursday morning, knocking out power in some parts of Portland and blowing down a barn in Polk County.
The National Weather Service said it would send investigators to check out reports of a twister southeast of Dallas, where the barn was destroyed. No one was injured.
An estimated 12,000 customers lost power in north Portland. Concordia College and five local schools were closed temporarily. About 3,000 customers lost power in Clackamas County.
Portland International Airport reported it was running on backup power after a brief outage.
A downed tree and power line along Highway 30 near Astoria in Clatsop County caused the crash of an SUV and temporarily closed the road until it was opened to one lane of traffic.