{"url_path":"/weather/alerts/2.49.0.1.840.0.9558d47c44c579023a75fe8cd68789bd028f4ada.001.1","section_key":"alert","section_title":"Winter Weather Advisory issued May 16 at 10:30AM PDT until May 17 at 8:00AM PDT by NWS Seattle WA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-16","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.9558d47c44c579023a75fe8cd68789bd028f4ada.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Seattle WA"},"word_count":230,"has_tables":false,"body_markdown":"# Winter Weather Advisory: Winter Weather Advisory issued May 16 at 10:30AM PDT until May 17 at 8:00AM PDT by NWS Seattle WA\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** 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\n**Issued by:** NWS Seattle WA\n**Sent:** 2026-05-16T10:30:00-07:00\n**Effective:** 2026-05-16T10:30:00-07:00\n**Expires:** 2026-05-16T20:00:00-07:00\n\n## Description\n* WHAT...Snow showers. Total snow accumulations of 4 to 8 inches\nabove 4000 feet, with higher amounts possible in the high terrain.\n\n* WHERE...Cascades of Snohomish and Northern King Counties, Cascades\nof Whatcom and Skagit Counties, Olympics, Cascades of Pierce and\nLewis Counties, and Cascades of Southern King County.\n\n* WHEN...Until 8 AM PDT Sunday.\n\n* IMPACTS...Late season snow showers in the mountains may impact\nthose enjoying outdoor recreation in the mountains above 4000 feet\nthrough tonight. Warm road temperatures may limit roadway\naccumulations. However, temporary road accumulations will be\npossible in heavy snow showers.\n\n* ADDITIONAL DETAILS...Expect cold conditions in the mountains. The\nhighest chances for heavy showers will occur this afternoon. These\nshowers could be accompanied by lighting and small hail.\n\n## Instructions\nSlow down and use caution while driving during or after heavy\nshowers. Those recreating above 4000 feet should be aware of the\npotential for snow showers and thunderstorms. Have a plan for how to\nfind safety and know where and how fast you can find shelter."}