{"url_path":"/weather/alerts/2.49.0.1.840.0.de9b54a6c31ff4a6f6fc5a62e13e45522a4077bb.001.1","section_key":"alert","section_title":"Severe Thunderstorm Warning issued July 20 at 6:01PM CDT until July 20 at 6:15PM CDT by NWS Des Moines IA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-20","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.de9b54a6c31ff4a6f6fc5a62e13e45522a4077bb.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Des Moines IA"},"word_count":121,"has_tables":false,"body_markdown":"# Severe Thunderstorm Warning: Severe Thunderstorm Warning issued July 20 at 6:01PM CDT until July 20 at 6:15PM CDT by NWS Des Moines IA\n\n**Severity:** Severe\n**Certainty:** Observed\n**Urgency:** Immediate\n**Areas:** Grundy, IA; Hardin, IA\n**Issued by:** NWS Des Moines IA\n**Sent:** 2026-07-20T18:01:00-05:00\n**Effective:** 2026-07-20T18:01:00-05:00\n**Expires:** 2026-07-20T18:15:00-05:00\n\n## Description\nAt 601 PM CDT, a severe thunderstorm was located over Whitten, or 6\nmiles southeast of Eldora, moving east at 50 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\nLocations impacted include...\nUnion and Whitten.\n\n## Instructions\nA Tornado Watch remains in effect until 1000 PM CDT for central Iowa.\n\nFor your protection move to an interior room on the lowest floor of a\nbuilding."}