Weather and Floods

Our weather hazards vary considerably: we see few violent thunderstorms and even fewer tornadoes, but potentially face everything other than tropical storms. Our most common hazardous weather is in winter: windstorms, rain, flooding, and occasional snow, ice, and severe cold.

Seven-day forecast for Portland area

Regional Winter Weather Resources

Warming Shelters

Regional information by county (via
Clackamas County
Multnomah County (interactive map)
Washington County
Yamhill County: City of Newberg

Public Sandbag Sites

Public agencies in the region typically have free sand and sandbags available from ~ October through May. During localized flooding incidents, you may wish to contact the specific agency to ensure availability; some city-hosted sites are for residents only.

NOTE: All sites are self-service; you must bring your own shovel. Filling sandbags may be a two-person job.

•    US Army Corps of Engineers Guidelines for Sandbag Use (PDF)
•    Clackamas County Sandbag Sites
•    Washington County Sandbag Sites (PDF)
•    Yamhill County: City of Newberg Sandbag Sites

Aumsville Tornado Aftermath
Windstorm and Flooding