Flood Warning issued December 18 at 4:25AM PST until December 19 at 4:22PM PST by NWS Portland OR
Issue date: 2025-12-18T12:25+00:00
...The Flood Warning continues for the following rivers in Oregon... Hood River Near Hood River affecting Hood River County. Molalla River near Canby affecting Clackamas County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. * WHAT...Major flooding is forecast. This approaches the flood of record. * WHERE...Johnson Creek at Sycamore. * WHEN...From this afternoon to tomorrow afternoon. * IMPACTS...Above 14.0 feet, expect widespread flooding of residential and commercial areas along Johnson Creek. * ADDITIONAL DETAILS... - At 1:30 PM PST Wednesday the stage was 5.2 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will rise abruptly above flood stage today and crest late this evening around 14.8 feet before falling below flood stage early Friday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Flood Warning issued December 18 at 4:25AM PST until December 20 at 10:41AM PST by NWS Portland OR
Issue date: 2025-12-18T12:25+00:00
...The Flood Warning continues for the following rivers in Oregon... Hood River Near Hood River affecting Hood River County. Molalla River near Canby affecting Clackamas County. Johnson Creek at Sycamore affecting Multnomah and Clackamas Counties. Clackamas River at Estacada affecting Clackamas County. * WHAT...Major flooding is forecast. The current river forecast would be the largest flood on this river since the February 1996 flood. * WHERE...Clackamas River at Estacada. * WHEN...From this evening to late Saturday morning. * IMPACTS...Above 25.0 feet, expect major flood damage at parks along the river. Also expect flooding in Carver, along with numerous homes along the Clackamas River from Estacada downstream to the confluence with the Willamette. * ADDITIONAL DETAILS... - At 3:45 AM PST Thursday the stage was 14.8 feet. - Bankfull stage is 18.0 feet. - Forecast...The river will rise above flood stage this evening and crest around 25.2 feet early Friday morning. The river will fall below flood stage Saturday morning. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Flood Watch issued December 18 at 2:42AM PST until December 20 at 4:00PM PST by NWS Portland OR
Issue date: 2025-12-18T10:42+00:00
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Northwest Oregon and southwest Washington including the following counties. In Oregon: Benton, Clackamas, Clatsop, Columbia, Hood River, Lane, Linn, Lincoln, Marion, Multnomah, Polk, Tillamook, Washington, and Yamhill. In Washington: Clark, Cowlitz, Pacific, Skamania, and Wahkiakum. * 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
Wind Advisory issued December 17 at 8:37PM PST until December 18 at 7:00PM PST by NWS Portland OR
Issue date: 2025-12-18T04:37+00:00
* WHAT...South winds 15 to 20 mph with gusts up to 45 mph expected. * WHERE...Greater Portland/Vancouver Metro, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, North Oregon Coast Range, and South Washington Cascade Foothills. * WHEN...From 8 AM to 7 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winter Weather Advisory issued December 17 at 10:44AM PST until December 18 at 10:00AM PST by NWS Portland OR
Issue date: 2025-12-17T18:44+00:00
* WHAT...Wet snow expected. Total snow accumulations up to 6 inches. Winds gusting as high as 40 mph. * WHERE...North Oregon Cascades and Cascades of Marion and Linn Counties. * WHEN...From 4 AM to 10 AM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.
