Jan 16, 2011
A series of weather disturbances over the weekend brought sub-tropical moisture to the Pacific Northwest producing heavy rainfall over the region. The heavy rainfall combined with snowmelt runoff led to flooding on several rivers and streams in Northwest Oregon as well as landslides and debris flows.
Source: NOAA National Weather Service Storm Events Database (event 278739). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Clackamas County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.