Active Weather Alerts
Flood Watch
Issued: 9:30 AM Dec. 7, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... * WHAT...River and urban flooding caused by excessive rainfall is possible. Landslides possible in areas of steep terrain, and debris flows possible over recently burned areas. * WHERE...Counties in Oregon: Benton, Clackamas, Clatsop, Columbia, Hood River, Lane, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Washington, and Yamhill. Counties in Washington: Clark, Cowlitz, Pacific, Skamania, and Wahkiakum. * WHEN...From late tonight through late Thursday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Landslides and debris flows are possible during this flood event. People, structures, and roads located below steep slopes, in canyons, and near the mouths of canyons may be at serious risk from rapidly moving landslides. * ADDITIONAL DETAILS... - A prolonged atmospheric river is expected to bring periods of heavy rain to northwest Oregon and southwest Washington Monday through Wednesday, with periods of lighter rain continuing Thursday into Friday. Rivers draining the coastal mountains and several Willamette Tributaries have the highest chance of flooding at 40 to 80%. Chances for flooding along the Willamette mainstem remains low at less than 10%. Urban flooding is possible and water on roadways will increase the risk of hydroplaning. Landslides in areas of steep terrain will be possible, as well as debris flows over recently burned areas. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
River Flood Warning
Issued: 9:30 AM Dec. 7, 2025 – National Weather Service
...FLOOD WARNING IN EFFECT FROM MONDAY EVENING TO LATE WEDNESDAY EVENING... * WHAT...Minor flooding is forecast. There is a 70% chance of reaching moderate flooding, and a 60% chance of reaching major flooding. * WHERE...Johnson Creek at Sycamore. * WHEN...From Monday evening to late Wednesday evening. * IMPACTS...Above 11.0 feet, minor flooding begins along Johnson Creek between SE 92nd Street to SE 122nd Street and between Johnson Creek and SE Harold Street. * ADDITIONAL DETAILS... - At 12:30 AM PST Sunday the stage was 3.2 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will rise above flood stage late tomorrow evening to 11.9 feet early Tuesday morning. It will then fall below flood stage Tuesday morning to 10.4 feet Tuesday afternoon. It will rise above flood stage again Tuesday evening to 12.0 feet early Wednesday morning. It will then fall below flood stage again Wednesday afternoon to 3.1 feet Monday, December 15. It will then rise again but remain below flood stage. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood &&
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