Portland, Oregon
Regional Weather Alerts
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Umatilla, OR; Walla Walla, WA |
| Effective: | 2026-05-16 @ 7:55 pm -> 2026-05-16 @ 8:05 pm |
| Onset: | 2026-05-16 @ 7:55 pm -> 2026-05-16 @ 8:00 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Pendleton OR on 2026-05-16 @ 7:55 pm |
| Headline: | Severe Thunderstorm Warning issued May 16 at 5:55PM PDT until May 16 at 6:00PM PDT by NWS Pendleton OR |
| Description: |
The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. |
| Alert: | Winter Weather Advisory |
| Area(s): | North Oregon Cascades; Cascades of Marion and Linn Counties; Cascades of Lane County; South Washington Cascades |
| Effective: | 2026-05-16 @ 7:45 pm -> 2026-05-17 @ 7:00 am |
| Onset: | 2026-05-16 @ 7:45 pm -> 2026-05-17 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Portland OR on 2026-05-16 @ 7:45 pm |
| Headline: | Winter Weather Advisory issued May 16 at 5:45PM PDT until May 17 at 5:00AM PDT by NWS Portland OR |
| Description: |
* WHAT...Snow expected above 4000 feet. Additional snow accumulations between 1-3 inches, highest amounts at Government Camp, and an additional 4 to 6 inches of snow above 5000 feet. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 5 AM PDT Sunday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...There is a 20% chance of an additional 6 inches or more of snow at pass-level. |
| Alert: | Winter Weather Advisory |
| Area(s): | East Slopes of the Oregon Cascades; Upper Slopes of the Eastern Washington Cascades Crest |
| Effective: | 2026-05-16 @ 12:46 pm -> 2026-05-17 @ 1:00 am |
| Onset: | 2026-05-16 @ 12:46 pm -> 2026-05-17 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Pendleton OR on 2026-05-16 @ 12:46 pm |
| Headline: | Winter Weather Advisory issued May 16 at 10:46AM PDT until May 16 at 11:00PM PDT by NWS Pendleton OR |
| Description: |
* WHAT...Snow showers. Additional snow accumulations of 2 to 5 inches above 4500 feet. Winds gusting as high as 40 mph. * WHERE...In Oregon, East Slopes of the Oregon Cascades. In Washington, Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Plan on slippery road conditions, especially on bridges and overpasses. * ADDITIONAL DETAILS...Light snow accumulations are forecast as low as 3500 feet this evening. |