{"url_path":"/weather/alerts/2.49.0.1.840.0.ef113f7c945875e931d6b0a96a7a848c03df0611.001.1","section_key":"alert","section_title":"Heat Advisory issued June 20 at 11:40AM PDT until June 23 at 11:00PM PDT by NWS Seattle WA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-06-20","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.ef113f7c945875e931d6b0a96a7a848c03df0611.001.1","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":357,"has_tables":false,"body_markdown":"# Heat Advisory: Heat Advisory issued June 20 at 11:40AM PDT until June 23 at 11:00PM PDT by NWS Seattle WA\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** San Juan County; Foothills and Valleys of the North Cascades; Foothills and Valleys of Thurston and Lewis Counties; Lowlands of Western Whatcom County; Lowlands of Western Skagit and Northwestern Snohomish Counties; Olympia and Southern Puget Sound; Lowlands of Lewis and Southern Thurston Counties; Middle Chehalis River Valley; Willapa and Black Hills; Southern Hood Canal; Northern Hood Canal; Port Townsend Area; Eastern Strait of Juan de Fuca; Foothills of the Western and Southern Olympic Peninsula; Lower Chehalis River Valley; Island County\n**Issued by:** NWS Seattle WA\n**Sent:** 2026-06-20T11:40:00-07:00\n**Effective:** 2026-06-20T11:40:00-07:00\n**Expires:** 2026-06-20T19:45:00-07:00\n\n## Description\n* WHAT...Hot conditions with high temperatures between 85 to 95\ndegrees expected and low temperatures between 55 to 60 degrees.\nThis will pose a moderate risk of heat-related illness.\n\n* WHERE...Portions of northwest and west central Washington.\n\n* WHEN...From 11 AM Monday to 11 PM PDT Tuesday.\n\n* IMPACTS...Heat will significantly increase the risk of\nheat-related illnesses for those who are sensitive to heat,\nespecially those without effective cooling or adequate hydration.\n\n* ADDITIONAL DETAILS...Temperatures will peak on Tuesday with the\nhottest locations expected to be in the low 90s in the Puget Sound\nregion and mid 90s in areas south of Olympia.\n\n## Instructions\nDrink plenty of fluids, stay in an air-conditioned room, stay out of\nthe sun, and check up on relatives and neighbors. Young children and\npets should never be left unattended in vehicles under any\ncircumstances.\n\nTake extra precautions if you work or spend time outside. When\npossible reschedule strenuous activities to early morning or\nevening. Know the signs and symptoms of heat exhaustion and heat\nstroke. Wear lightweight and loose fitting clothing when possible.\nTo reduce risk during outdoor work, the Occupational Safety and\nHealth Administration recommends scheduling frequent rest breaks in\nshaded or air conditioned environments. Anyone overcome by heat\nshould be moved to a cool and shaded location. Heat stroke is an\nemergency! Call 9 1 1.\n\nFor sheltering information and other human services in your area,\ndial 2 1 1 during business hours or visit wa211.org anytime."}