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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 consistently hazardous weather is in winter: windstorms, rain, flooding, and occasional snow, ice, and cold.

Aumsville Tornado December 2010Seven-day forecast for Portland area

Severe weather shelters: Washington County

Public Sandbag Sites
Public agencies in Washington, Clackamas, and Yamhill Counties 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.

National Weather Service (NWS) Winter Weather Awareness and Safety

National Weather Service (NWS) Hazardous Weather Tips

NWS weather alerts

Selected Links for Weather, Floods, and Landslides Winter Storm December 2008