{"url_path":"/weather/alerts/2.49.0.1.840.0.4ea6b4cc3ef2899d2722e61845ed22908debd2ca.004.1","section_key":"alert","section_title":"Frost Advisory issued May 19 at 11:40AM MDT until May 20 at 8:00AM MDT by NWS Cheyenne WY","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-19","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.4ea6b4cc3ef2899d2722e61845ed22908debd2ca.004.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Cheyenne WY"},"word_count":123,"has_tables":false,"body_markdown":"# Frost Advisory: Frost Advisory issued May 19 at 11:40AM MDT until May 20 at 8:00AM MDT by NWS Cheyenne WY\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** North Sioux; Niobrara County; Central Laramie Range and Southwest Platte County; East Platte County; South Laramie Range Foothills\n**Issued by:** NWS Cheyenne WY\n**Sent:** 2026-05-19T11:40:00-06:00\n**Effective:** 2026-05-19T11:40:00-06:00\n**Expires:** 2026-05-20T06:00:00-06:00\n\n## Description\n* WHAT...Temperatures as low as 28 will result in frost formation.\n\n* WHERE...In Nebraska, Northern Sioux County. In Wyoming, Niobrara\nCounty, Central Laramie Range and Southwest Platte County, East\nPlatte County, and South Laramie Range Foothills.\n\n* WHEN...From midnight tonight to 8 AM MDT Wednesday.\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."}