Seattle, Washington
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: | Special Weather Statement |
| Area(s): | Washington Palouse |
| Effective: | 2026-05-16 @ 7:49 pm -> 2026-05-16 @ 8:15 pm |
| Onset: | 2026-05-16 @ 7:49 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Spokane WA on 2026-05-16 @ 7:49 pm |
| Headline: | Special Weather Statement issued May 16 at 5:49PM PDT by NWS Spokane WA |
| Description: |
At 548 PM PDT, Doppler radar was tracking a strong thunderstorm 14 miles southwest of Colfax, or 23 miles west of Pullman, moving east at 15 mph. HAZARD...Winds in excess of 30 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. Locations impacted include... Dusty. |
| 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: | Flood Warning |
| Area(s): | Chelan, WA |
| Effective: | 2026-05-16 @ 1:51 pm -> 2026-05-17 @ 2:00 pm |
| Onset: | 2026-05-16 @ 1:51 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Spokane WA on 2026-05-16 @ 1:51 pm |
| Headline: | Flood Warning issued May 16 at 11:51AM PDT by NWS Spokane WA |
| Description: |
...The Flood Warning continues for the following rivers in Washington... Stehekin River at Stehekin affecting Chelan County. For the Stehekin River...including Stehekin...Minor flooding is forecast. * WHAT...Minor flooding is occurring and forecast to continue. * WHERE...Stehekin River at Stehekin. * WHEN...Until further notice. * IMPACTS...At 20.5 feet, water inundates some properties and overtops the temporary corduroy bridge. Company Creek Road inundated at northern end. Battalion Creek culverts are beginning to be overtopped. Water begins damaging Wood Road. * ADDITIONAL DETAILS... - At 11:30 AM PDT Saturday the stage was 21.0 feet. - Bankfull stage is 19.5 feet. - Forecast...The river is expected to gradually recede through the next couple of days, dropping below flood stage by May 17. It is forecasted to rise back above flood stage on May 19. - Flood stage is 20.5 feet. - http://www.weather.gov/safety/flood |
| 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. |
| Alert: | Winter Weather Advisory |
| Area(s): | Cascades of Whatcom and Skagit Counties; Cascades of Snohomish and Northern King Counties; Cascades of Southern King County; Cascades of Pierce and Lewis Counties; Olympics |
| Effective: | 2026-05-16 @ 12:30 pm -> 2026-05-16 @ 10:00 pm |
| Onset: | 2026-05-16 @ 12:30 pm -> 2026-05-17 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Seattle WA on 2026-05-16 @ 12:30 pm |
| Headline: | Winter Weather Advisory issued May 16 at 10:30AM PDT until May 17 at 8:00AM PDT by NWS Seattle WA |
| Description: |
* WHAT...Snow showers. Total snow accumulations of 4 to 8 inches above 4000 feet, with higher amounts possible in the high terrain. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Olympics, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 8 AM PDT Sunday. * IMPACTS...Late season snow showers in the mountains may impact those enjoying outdoor recreation in the mountains above 4000 feet through tonight. Warm road temperatures may limit roadway accumulations. However, temporary road accumulations will be possible in heavy snow showers. * ADDITIONAL DETAILS...Expect cold conditions in the mountains. The highest chances for heavy showers will occur this afternoon. These showers could be accompanied by lighting and small hail. |