The National Weather Service issued tornado warnings for several areas in Oregon on Monday as heavy rain and wind brought down trees and caused power outages.

A pair of storms pummeling the Pacific Northwest threaten flooding, avalanches and 'sting jets' – intense and destructive low-level winds.

The third powerful atmospheric river storm to impact the Pacific Northwest since the end of last week blasted portions of Washington and Oregon with hurricane-force wind gusts and torrential rain that led to widespread power outages,