Winter Weather Advisory issued March 11 at 6:01PM PDT until March 12 at 11:00PM PDT by NWS Portland OR
Issue date: 2026-03-12T01:01+00:00
* WHAT...Wet snow accumulations will be heavily elevation dependent. For locations between 3000 and 5000 feet, wet snow accumulations of 3 to 12 inches possible. For isolated locations between 5000 and 5500 feet near Mount Hood, accumulations of 12 to 18 inches. * WHERE...North Oregon Cascades. * WHEN...Until 11 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For locations above 5500 feet, expect several feet of wet snow.
Flood Watch issued March 11 at 1:21PM PDT until March 13 at 11:00PM PDT by NWS Portland OR
Issue date: 2026-03-11T20:21+00:00
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Oregon, including the following areas, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin 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, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...From 5 PM PDT this afternoon through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. 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... - http://www.weather.gov/safety/flood
Flood Watch issued March 11 at 11:24AM PDT until March 16 at 10:49PM PDT by NWS Portland OR
Issue date: 2026-03-11T18:24+00:00
...The Flood Watch continues for the following rivers in Oregon... Johnson Creek at Sycamore affecting Inner Portland Metro zone. Pudding River at Aurora affecting East Central Willamette Valley zone. * WHAT...Flooding is possible. * WHERE...Pudding River at Aurora. * WHEN...From Saturday evening to late Monday evening. * IMPACTS...Above 22.0 feet, expect minor flooding of low-lying agricultural lands and access roads along the river. * ADDITIONAL DETAILS... - At 11:00 AM PDT Wednesday the stage was 10.0 feet. - Forecast...Flood stage may be reached Saturday evening. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
Flood Watch issued March 11 at 11:24AM PDT until March 14 at 5:39AM PDT by NWS Portland OR
Issue date: 2026-03-11T18:24+00:00
...The Flood Watch continues for the following rivers in Oregon... Johnson Creek at Sycamore affecting Inner Portland Metro zone. Pudding River at Aurora affecting East Central Willamette Valley zone. * WHAT...Flooding is possible. * WHERE...Johnson Creek at Sycamore. * WHEN...From Thursday morning to early Saturday morning. * 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 11:00 AM PDT Wednesday the stage was 3.2 feet. - Forecast...Flood stage may be reached tomorrow morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
