Portland, Oregon
Regional Weather Alerts
| Alert: | Coastal Flood Advisory |
| Area(s): | Clatsop County Coast; South Washington Coast |
| Effective: | 2025-12-05 @ 5:08 pm -> 2025-12-06 @ 5:00 pm |
| Onset: | 2025-12-06 @ 11:00 am -> 2025-12-06 @ 5:00 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Portland OR on 2025-12-05 @ 5:08 pm |
| Headline: | Coastal Flood Advisory issued December 5 at 3:08PM PST until December 6 at 3:00PM PST by NWS Portland OR |
| Description: |
* WHAT...Tidal overflow flooding expected. * WHERE...In Oregon, Clatsop County Coast. In Washington, South Washington Coast. * WHEN...From 9 AM to 3 PM PST Saturday. * IMPACTS...Total tide of up to 11.0 feet at Toke Point and up to 10.2 feet at Tongue Point will result in minor flooding up to one foot above ground level during high tides in low lying areas near bays, sloughs, and in the lower reaches of coastal rivers. |
| Alert: | Hydrologic Outlook |
| Area(s): | Clatsop County Coast; Tillamook County Coast; Central Coast of Oregon; North Oregon Coast Range Lowlands; Central Oregon Coast Range Lowlands; North Oregon Coast Range; Central Oregon Coast Range; Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; West Columbia River Gorge of Oregon above 500 ft; West Columbia River Gorge I-84 Corridor; Upper Hood River Valley; Central Columbia River Gorge I-84 Corridor; Clackamas County Cascade Foothills; Cascade Foothills of Marion and Linn Counties; Lane County Cascade Foothills; North Oregon Cascades; Cascades of Marion and Linn Counties; Cascades of Lane County; South Washington Coast; Willapa and Wahkiakum Lowlands; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills; West Columbia River Gorge - SR 14; Central Columbia River Gorge - SR 14; South Washington Cascades |
| Effective: | 2025-12-05 @ 4:46 pm |
| Onset: | 2025-12-05 @ 4:46 pm -> 2025-12-06 @ 8:00 am |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Portland OR on 2025-12-05 @ 4:46 pm |
| Headline: | Hydrologic Outlook issued December 5 at 2:46PM PST by NWS Portland OR |
| Description: |
ESFPQR A series of frontal systems will keep conditions wet through the weekend and much of next week. The most notable period will be late Monday through late Wednesday, where a prolonged atmospheric river may bring significant rainfall and rising rivers across southwest Washington and northwest Oregon. However, river flooding for some locations could continue into Thursday and beyond as some rivers take longer to respond to heavier rainfall. Rivers draining the Coast Range and Willapa Hills have a 30-60% chance of reaching moderate flood stage and a 10-30% chance of reaching major flood stage. Additionally, many Willamette River tributaries that drain from the Coast Range and Cascades have anywhere from a 10-55% chance of reaching minor flood stage and a 10-25% chance of reaching moderate flood stage. Flooding of the Willamette mainstem rivers is unlikely to occur (less than 10%). Probabilities for specific river points can be found at the National Water Prediction Service website. There is also the potential for flooding along small creeks and streams, as well as urban flooding, including roadway flooding, for locations in the central Willamette Valley north into the southwest Washington lowlands, including the Portland metro area. Periods of heavy rain will also increase the risk for landslides in areas of steep terrain, and debris flows over recently burned areas. |
| Alert: | Wind Advisory |
| Area(s): | Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Eastern Columbia River Gorge of Washington; Simcoe Highlands |
| Effective: | 2025-12-05 @ 2:47 pm -> 2025-12-06 @ 12:00 pm |
| Onset: | 2025-12-05 @ 3:00 pm -> 2025-12-06 @ 1:30 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Pendleton OR on 2025-12-05 @ 2:47 pm |
| Headline: | Wind Advisory issued December 5 at 12:47PM PST until December 6 at 10:00AM PST by NWS Pendleton OR |
| Description: |
* WHAT...Southwest to west winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Eastern Columbia River Gorge of Oregon and Washington, Foothills of the Blue Mountains of Oregon, Lower Columbia Basin of Oregon, North Central Oregon, and Simcoe Highlands. * WHEN...Until 10 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. |
| Alert: | Wind Advisory |
| Area(s): | Wallowa County |
| Effective: | 2025-12-05 @ 2:47 pm -> 2025-12-06 @ 3:00 pm |
| Onset: | 2025-12-05 @ 3:00 pm -> 2025-12-06 @ 1:30 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Pendleton OR on 2025-12-05 @ 2:47 pm |
| Headline: | Wind Advisory issued December 5 at 12:47PM PST until December 6 at 1:00PM PST by NWS Pendleton OR |
| Description: |
* WHAT...West to northwest winds 20 to 30 mph with gusts up to 50 mph expected for Wallowa Valley. * WHERE...Wallowa County. * WHEN...Until 1 PM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. |