{"url_path":"/weather/alerts/2.49.0.1.840.0.cfdf8995fe394e6679a9f29acfec5382de51898d.001.1","section_key":"alert","section_title":"Severe Thunderstorm Warning issued May 31 at 5:57PM CDT until May 31 at 6:45PM CDT by NWS Sioux Falls SD","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-31","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.cfdf8995fe394e6679a9f29acfec5382de51898d.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":261,"has_tables":false,"body_markdown":"# Severe Thunderstorm Warning: Severe Thunderstorm Warning issued May 31 at 5:57PM CDT until May 31 at 6:45PM CDT by NWS Sioux Falls SD\n\n**Severity:** Severe\n**Certainty:** Observed\n**Urgency:** Immediate\n**Areas:** Hanson, SD; Lake, SD; McCook, SD; Miner, SD\n**Issued by:** NWS Sioux Falls SD\n**Sent:** 2026-05-31T17:57:00-05:00\n**Effective:** 2026-05-31T17:57:00-05:00\n**Expires:** 2026-05-31T18:45:00-05:00\n\n## Description\nSVRFSD\n\nThe National Weather Service in Sioux Falls has issued a\n\n* Severe Thunderstorm Warning for...\nSouthwestern Lake County in east central South Dakota...\nSoutheastern Miner County in east central South Dakota...\nWestern McCook County in southeastern South Dakota...\nEastern Hanson County in southeastern South Dakota...\n\n* Until 645 PM CDT.\n\n* At 556 PM CDT, a severe thunderstorm was located near Emery, or 20\nmiles west of Lake Vermillion State Recreation Area, moving\nnortheast at 30 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\nto roofs, siding, and trees.\n\n* This severe thunderstorm will be near...\nSalem and Spencer In McCook County around 600 PM CDT.\nCanova around 615 PM CDT.\n\n## Instructions\nRemain alert for a possible tornado! Tornadoes can develop quickly\nfrom severe thunderstorms. If you spot a tornado go at once into the\nbasement or small central room in a sturdy structure.\n\nFor your protection move to an interior room on the lowest floor of a\nbuilding.\n\nTo report severe weather, contact your nearest law enforcement\nagency. They will send your report to the National Weather Service\noffice in Sioux Falls.\n\nTorrential rainfall is occurring with this storm, and may lead to\nflash flooding. Do not drive your vehicle through flooded roadways."}