{"url_path":"/weather/alerts/2.49.0.1.840.0.7e220cb01d54fa26de2cdf5328715ae30a3580c1.001.1","section_key":"alert","section_title":"Severe Thunderstorm Warning issued May 18 at 6:01PM CDT until May 18 at 6:30PM CDT by NWS Sioux Falls SD","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-18","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.7e220cb01d54fa26de2cdf5328715ae30a3580c1.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Sioux Falls SD"},"word_count":133,"has_tables":false,"body_markdown":"# Severe Thunderstorm Warning: Severe Thunderstorm Warning issued May 18 at 6:01PM CDT until May 18 at 6:30PM CDT by NWS Sioux Falls SD\n\n**Severity:** Severe\n**Certainty:** Observed\n**Urgency:** Immediate\n**Areas:** Buena Vista, IA; Cherokee, IA; Clay, IA; O'Brien, IA\n**Issued by:** NWS Sioux Falls SD\n**Sent:** 2026-05-18T18:01:00-05:00\n**Effective:** 2026-05-18T18:01:00-05:00\n**Expires:** 2026-05-18T18:30:00-05:00\n\n## Description\nAt 601 PM CDT, a severe thunderstorm was located near Larrabee, or\nnear Cherokee, moving northeast at 45 mph.\n\nHAZARD...60 mph wind gusts and quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Hail damage to vehicles is expected. Expect wind damage to\nroofs, siding, and trees.\n\nThis severe storm will be near...\nSutherland, Peterson, and Larrabee around 605 PM CDT.\n\nOther locations in the path of this severe thunderstorm include Linn\nGrove, Royal and Greenville.\n\n## Instructions\nFor your protection move to an interior room on the lowest floor of a\nbuilding."}