{"url_path":"/weather/alerts/2.49.0.1.840.0.a8a0a876ed44807158f68bfd2004f94133a7b417.001.1","section_key":"alert","section_title":"Frost Advisory issued May 18 at 1:26PM CDT until May 19 at 9:00AM CDT by NWS Aberdeen SD","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-18","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a8a0a876ed44807158f68bfd2004f94133a7b417.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Aberdeen SD"},"word_count":108,"has_tables":false,"body_markdown":"# Frost Advisory: Frost Advisory issued May 18 at 1:26PM CDT until May 19 at 9:00AM CDT by NWS Aberdeen SD\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Corson; Campbell; McPherson; Walworth; Edmunds; Dewey; Potter; Stanley; Sully; Hughes; Jones\n**Issued by:** NWS Aberdeen SD\n**Sent:** 2026-05-18T13:26:00-05:00\n**Effective:** 2026-05-18T13:26:00-05:00\n**Expires:** 2026-05-18T23:30:00-05:00\n\n## Description\n* WHAT...Temperatures from 33 to 36 degrees may result in frost\nformation.\n\n* WHERE...Portions of central and north central South Dakota.\n\n* WHEN...From 4 AM CDT /3 AM MDT/ to 9 AM CDT /8 AM MDT/ Tuesday.\n\n* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive\noutdoor plants may be killed if left uncovered.\n\n## Instructions\nTake steps now to protect tender plants from the cold."}