Flood Watch issued December 19 at 2:43PM PST until December 20 at 4:00PM PST by NWS Portland OR
Issue date: 2025-12-19T22:43+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...Creeks and streams may rise out of their banks. 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... - Although heavy rain has ended, widespread river flooding is expected to continue through Friday night, except through Saturday along slower responding rivers. - http://www.weather.gov/safety/flood
Winter Weather Advisory issued December 19 at 2:21PM PST until December 20 at 4:00AM PST by NWS Portland OR
Issue date: 2025-12-19T22:21+00:00
* WHAT...Snow. Additional snow accumulations 1 to 3 inches. * WHERE...Cascades of Lane County. * WHEN...Until 4 AM PST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.
Flood Warning issued December 19 at 8:29AM PST until December 19 at 10:31PM PST by NWS Portland OR
Issue date: 2025-12-19T16:29+00:00
...The Flood Warning is extended for the following rivers in Oregon... Alsea River near Tidewater affecting Benton and Lincoln Counties. Nehalem River near Foss affecting Clatsop and Tillamook Counties. Siletz River at Siletz affecting Lincoln County. Wilson River near Tillamook affecting Tillamook County. ...The Flood Warning continues for the following rivers in Oregon... Siuslaw River near Mapleton affecting Lane County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Siuslaw River near Mapleton. * WHEN...Until late this evening. * IMPACTS...Above 22.0 feet, expect widespread flooding of low-lying land. Several homes and structures in low areas of Mapleton start to flood. Numerous rural roads along and near the Siuslaw River will likely be flooded, and water begins to cover the lower sections of Hwy 126 at this stage. Flooding may be exacerbated during high tide. * ADDITIONAL DETAILS... - At 8:00 AM PST Friday the stage was 20.8 feet. - Bankfull stage is 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM PST Friday was 21.6 feet. - Forecast...The river has crested and will fall below flood stage late this evening. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
