Active Weather Alerts
Flood Warning
Issued: 1:43 AM Dec. 19, 2025 – National Weather Service
...FLOOD WARNING IN EFFECT UNTIL 845 PM PST THIS EVENING... ...REPLACES FLOOD ADVISORY... * WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Portions of northwest Oregon, including the following counties, Clackamas, Columbia, Multnomah, Washington and Yamhill and southwest Washington, including the following counties, Clark and Skamania. * WHEN...Until 845 PM PST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 543 PM PST, Doppler radar and automated rain gauges indicated heavy rain. Flooding is already occurring in the warned area. Between 1.5 and 2.5 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. - Some locations that will experience flooding include... Hillsboro, McMinnville, Oregon City, Battle Ground, Washougal, St. Helens, Sandy, Woodland, Stevenson, Cascade Locks, Portland Downtown, Vancouver Downtown, Portland, Vancouver, Gresham, Beaverton, Tigard, Lake Oswego, Tualatin and West Linn. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Stay away or be swept away. River banks and culverts can become unstable and unsafe. &&
River Flood Warning
Issued: 1:35 AM Dec. 19, 2025 – National Weather Service
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO FRIDAY AFTERNOON... * WHAT...Moderate flooding is forecast. * WHERE...Sandy River near Bull Run. * WHEN...From this evening to Friday afternoon. * IMPACTS...Above 21.5 feet, expect significant bank erosion, large amounts of debris in the river, and flooding of low areas along the river, especially in the lower reach of the Sandy near Troutdale. * ADDITIONAL DETAILS... - At 4:45 PM PST Thursday the stage was 14.6 feet. - Bankfull stage is 18.0 feet. - Forecast...The river will rise above flood stage late this evening and crest around 20.8 feet late tonight. It will then fall below flood stage late Friday morning. - Flood stage is 19.3 feet. - http://www.weather.gov/safety/flood &&
Flood Watch
Issued: 12:24 AM Dec. 19, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Oregon, including the following areas, Benton County Lowlands, Cascade Foothills of Marion and Linn Counties, Cascades of Lane County, Cascades of Marion and Linn Counties, Central Coast of Oregon, Central Columbia River Gorge I-84 Corridor, Central Oregon Coast Range, Central Oregon Coast Range Lowlands, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lane County Cascade Foothills, Lane County Lowlands, Linn County Lowlands, Lower Columbia River, North Oregon Cascades, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin Valley, Upper Hood River Valley, West Central Willamette Valley, West Columbia River Gorge I-84 Corridor and West Columbia River Gorge of Oregon above 500 ft and southwest Washington, including the following areas, Central Columbia River Gorge SR 14 Corridor, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, South Washington Cascades, South Washington Coast, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...Through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain. 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... - An atmospheric river is forecast to bring periods of heavy rain to northwestern Oregon and southwestern Washington today. This system occurs at a time when area rivers continue to run high and soils remain saturated following heavy rain earlier in the month. During initial heavy rainfall today, the urban and small stream flooding threat will be most urgent, although the details of precise timing and location of the highest risk remains uncertain at this time. As runoff works its way downstream, the river flooding threat will increase tonight into Friday, with numerous area rivers now forecast to reach at least Minor flood stage. Slower reacting rivers may stay in flood stage into Saturday afternoon. - 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: 11:47 PM Dec. 18, 2025 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TOMORROW AFTERNOON... * WHAT...Major flooding is forecast. * WHERE...Johnson Creek at Sycamore. * WHEN...Until early tomorrow afternoon. * IMPACTS...Above 14.0 feet, expect widespread flooding of residential and commercial areas along Johnson Creek. * ADDITIONAL DETAILS... - At 3:30 PM PST Thursday the stage was 8.9 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will rise above flood stage late this afternoon or early this evening and crest around 14.3 feet late this evening. It will then fall below flood stage Friday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood &&
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