Portland, OR – A powerful weather system is set to bring heavy rainfall and potential flooding to northwest Oregon and southwest Washington this weekend. Rain is expected to begin Saturday afternoon and intensify through Sunday, leading to rising river levels and increased risks of urban flooding.
According to the National Weather Service in Portland, multiple frontal systems will bring persistent rain, with the heaviest precipitation expected between Saturday night and Sunday. Areas with poor drainage and low-lying regions may experience flooding, while major rivers could see delayed but significant water level rises into next week. Forecasters estimate a 25% chance of the Wilson and Grays rivers reaching minor flood stage by Sunday.
In addition to flooding concerns, landslides may occur along the Cascades due to heavy rain combined with existing snowpack. Steep terrain and areas previously affected by wildfires are at heightened risk.
Motorists should prepare for wet roads and potential travel disruptions, especially along highways near rivers and hillsides. Residents are urged to monitor local forecasts and take precautions to protect property from water damage.
