Olympic National Park, Washington
Regional Weather Alerts
| Alert: | Winter Weather Advisory |
| Area(s): | North Oregon Cascades; South Washington Cascades |
| Effective: | 2026-04-01 @ 11:58 am -> 2026-04-02 @ 7:00 pm |
| Onset: | 2026-04-01 @ 11:58 am -> 2026-04-02 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Portland OR on 2026-04-01 @ 11:58 am |
| Headline: | Winter Weather Advisory issued April 1 at 9:58AM PDT until April 2 at 5:00PM PDT by NWS Portland OR |
| Description: |
* WHAT...Snow expected above 3000 feet. Additional snow accumulations between 6 to 11 inches, except 12 to 20 inches above 4500 feet. Winds gusting as high as 40 mph. * WHERE...In Oregon, North Oregon Cascades. In Washington, South Washington Cascades. * WHEN...Until 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...There is a 40-60% chance for snowfall rates exceeding 1 inch per hour along highway 26 near Government Camp, with the highest chances occurring between 12-7 PM Wednesday and between 3-6 AM Thursday.. |
| 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 |
| Effective: | 2026-04-01 @ 6:04 am -> 2026-04-02 @ 1:00 pm |
| Onset: | 2026-04-01 @ 7:00 am -> 2026-04-01 @ 2:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Seattle WA on 2026-04-01 @ 6:04 am |
| Headline: | Winter Weather Advisory issued April 1 at 4:04AM PDT until April 2 at 11:00AM PDT by NWS Seattle WA |
| Description: |
* WHAT...Snow expected. Total snow accumulations of 4 to 8 inches, with locally higher amounts over the higher peaks. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 11 AM PDT Thursday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Accumulations expected generally above 3000 feet. |
| Alert: | Winter Weather Advisory |
| Area(s): | Upper Slopes of the Eastern Washington Cascades Crest |
| Effective: | 2026-03-31 @ 9:58 pm -> 2026-04-02 @ 1:00 pm |
| Onset: | 2026-04-01 @ 7:00 am -> 2026-04-01 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Pendleton OR on 2026-03-31 @ 9:58 pm |
| Headline: | Winter Weather Advisory issued March 31 at 7:58PM PDT until April 2 at 11:00AM PDT by NWS Pendleton OR |
| Description: |
...COLD AND WET STORM BRINGS HEAVY MOUNTAIN SNOW TO THE CASCADES... * WHAT...Snow expected. Total snow accumulations up to 7 inches. Winds gusting as high as 45 mph along exposed ridges. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...From 5 AM Wednesday to 11 AM PDT Thursday. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | Okanogan Highlands |
| Effective: | 2026-03-31 @ 9:57 pm -> 2026-04-02 @ 1:00 pm |
| Onset: | 2026-04-01 @ 7:00 am -> 2026-04-01 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Spokane WA on 2026-03-31 @ 9:57 pm |
| Headline: | Winter Weather Advisory issued March 31 at 7:57PM PDT until April 2 at 11:00AM PDT by NWS Spokane WA |
| Description: |
* WHAT...Snow expected Above 4000 feet. Total snow accumulations between 3 and 8 inches. * WHERE...Sherman Pass, Boulder Creek Road, Highway 20 Wauconda Summit, and Chesaw Road. * WHEN...From 5 AM Wednesday to 11 AM PDT Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Light snow is expected on Wednesday with areas of slick driving conditions in the morning over the mountain passes. Snow will increase Wednesday evening with winter travel conditions through the night into early Thursday. |
| Alert: | Winter Weather Advisory |
| Area(s): | Western Okanogan County |
| Effective: | 2026-03-31 @ 9:57 pm -> 2026-04-02 @ 1:00 pm |
| Onset: | 2026-04-01 @ 7:00 am -> 2026-04-01 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Spokane WA on 2026-03-31 @ 9:57 pm |
| Headline: | Winter Weather Advisory issued March 31 at 7:57PM PDT until April 2 at 11:00AM PDT by NWS Spokane WA |
| Description: |
* WHAT...Snow expected Above 3000 feet. Total snow accumulations between 3 and 8 inches. * WHERE...Loup Loup Pass, Washington Pass. * WHEN...From 5 AM Wednesday to 11 AM PDT Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Light snow is expected on Wednesday above 3000 to 4000 feet with areas of slick driving conditions in the morning. Snow will increase Wednesday evening with winter travel conditions through the night into early Thursday. |
| Alert: | Winter Weather Advisory |
| Area(s): | Western Chelan County |
| Effective: | 2026-03-31 @ 9:57 pm -> 2026-04-02 @ 1:00 pm |
| Onset: | 2026-04-01 @ 7:00 am -> 2026-04-01 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Spokane WA on 2026-03-31 @ 9:57 pm |
| Headline: | Winter Weather Advisory issued March 31 at 7:57PM PDT until April 2 at 11:00AM PDT by NWS Spokane WA |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 to 9 inches above 3000 feet. * WHERE...Holden Village and Stevens Pass. * WHEN...From 5 AM Wednesday to 11 AM PDT Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Light snow is expected on Wednesday above 3000 to 4000 feet with areas of slick driving conditions in the morning. Snow will increase Wednesday evening with winter travel conditions through the night into early Thursday. |
| Alert: | Flood Warning |
| Area(s): | Chelan, WA |
| Effective: | 2026-03-29 @ 4:11 pm -> 2026-04-05 @ 10:30 am |
| Onset: | 2026-03-29 @ 4:11 pm -> 2026-04-05 @ 10:30 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Spokane WA on 2026-03-29 @ 4:11 pm |
| Headline: | Flood Warning issued March 29 at 2:11PM PDT until April 5 at 8:30AM PDT by NWS Spokane WA |
| Description: |
* WHAT...Flooding caused by snowmelt continues for the lower Stehekin Valley. * WHERE...A portion of North Central Washington, including the following county, Chelan. * WHEN...Until further notice. * IMPACTS...When the Stehekin River gauge hits 19.3 feet, water breaches the river bank. At 20 feet, water inundates some properties and overtops the temporary corduroy bridge. Company Creek Road begins to flood in places at the northern end and Battalion Creek culverts are beginning to be overtopped. At 20.5 feet, water begins to damage Wood Road. * ADDITIONAL DETAILS... - At 208 PM PDT, Snowmelt continues to contribute to high floods and flooding on the Stehekin River. - Little precipitation over the past couple of days has allowed the Stehekin River to slowly recede. This trend will continue through the week, but it is forecasted to remain near or above 20 feet until further notice. - http://www.weather.gov/safety/flood |