{"url_path":"/weather/alerts/2.49.0.1.840.0.bc143e2029780c107aa7c8e35ee6ed85a77df424.002.1","section_key":"alert","section_title":"Freeze Warning issued May 19 at 9:35AM MDT until May 20 at 8:00AM MDT by NWS Riverton 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.bc143e2029780c107aa7c8e35ee6ed85a77df424.002.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Riverton WY"},"word_count":143,"has_tables":false,"body_markdown":"# Freeze Warning: Freeze Warning issued May 19 at 9:35AM MDT until May 20 at 8:00AM MDT by NWS Riverton WY\n\n**Severity:** Moderate\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Southeast Johnson County; Upper Wind River Basin; Wind River Basin; Lander Foothills; Green Mountains and Rattlesnake Range; Natrona County Lower Elevations\n**Issued by:** NWS Riverton WY\n**Sent:** 2026-05-19T09:35:00-06:00\n**Effective:** 2026-05-19T09:35:00-06:00\n**Expires:** 2026-05-20T08:00:00-06:00\n\n## Description\n* WHAT...Sub-freezing temperatures between 25 and 30 degrees\nexpected. The coldest temperatures occur where recent snowfall has\noccurred, where lows may reach as cold as 20 degrees.\n\n* WHERE...Green Mountains and Rattlesnake Range, Lander Foothills,\nNatrona County Lower Elevations, Upper Wind River Basin, Wind\nRiver Basin, and Southeast Johnson County.\n\n* WHEN...From 9 PM this evening to 8 AM MDT Wednesday.\n\n* IMPACTS...Frost and freeze conditions could kill crops, other\nsensitive vegetation and possibly damage unprotected outdoor\nplumbing.\n\n## Instructions\nTake steps now to protect tender plants from the cold."}