{"url_path":"/weather/alerts/2.49.0.1.840.0.863e354293c46b1a67f8aefce58fa33edde6cb89.001.2","section_key":"alert","section_title":"Heat Advisory issued July 20 at 12:18PM CDT until July 20 at 8:00PM CDT by NWS Norman OK","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-20","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.863e354293c46b1a67f8aefce58fa33edde6cb89.001.2","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Norman OK"},"word_count":180,"has_tables":false,"body_markdown":"# Heat Advisory: Heat Advisory issued July 20 at 12:18PM CDT until July 20 at 8:00PM CDT by NWS Norman OK\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Alfalfa; Grant; Kay; Major; Garfield; Noble; Kingfisher; Logan; Payne; Canadian; Oklahoma; Lincoln; Cleveland; Pottawatomie; Seminole; Hughes; Pontotoc; Coal; Atoka; Bryan\n**Issued by:** NWS Norman OK\n**Sent:** 2026-07-20T12:18:00-05:00\n**Effective:** 2026-07-20T12:18:00-05:00\n**Expires:** 2026-07-20T22:15:00-05:00\n\n## Description\n* WHAT...For the Heat Advisory, heat index values up to 108 expected.\nFor the Extreme Heat Warning, dangerously hot conditions with heat\nindex values up to 114 expected.\n\n* WHERE...Portions of central, east central, northern, northwest, and\nsoutheast Oklahoma.\n\n* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the\nExtreme Heat Warning, from noon to 8 PM CDT Tuesday.\n\n* IMPACTS...Heat related illnesses increase significantly during\nextreme heat and high humidity events. Hot temperatures and high\nhumidity may cause heat illnesses.\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.\n\nDo not leave young children and pets in unattended vehicles. Car\ninteriors will reach lethal temperatures in a matter of minutes."}