{"url_path":"/weather/alerts/2.49.0.1.840.0.64dd86c18c5511e43cc6c5a9aec71e2b9fc32a1e.001.1","section_key":"alert","section_title":"Flood Advisory issued May 18 at 3:57PM CDT until May 18 at 7:15PM CDT by NWS St Louis MO","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-05-18","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.64dd86c18c5511e43cc6c5a9aec71e2b9fc32a1e.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS St Louis MO"},"word_count":185,"has_tables":false,"body_markdown":"# Flood Advisory: Flood Advisory issued May 18 at 3:57PM CDT until May 18 at 7:15PM CDT by NWS St Louis MO\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** St. Louis, MO; St. Louis City, MO\n**Issued by:** NWS St Louis MO\n**Sent:** 2026-05-18T15:57:00-05:00\n**Effective:** 2026-05-18T15:57:00-05:00\n**Expires:** 2026-05-18T19:15:00-05:00\n\n## Description\n* WHAT...Urban area and small stream flooding caused by excessive\nrainfall continues.\n\n* WHERE...Central Saint Louis County in east central Missouri...\nSaint Louis City in east central Missouri...\n\n* WHEN...Until 715 PM CDT.\n\n* IMPACTS...Minor flooding in low-lying and poor drainage areas.\nOverflowing poor drainage areas.\n\n* ADDITIONAL DETAILS...\n- At 357 PM CDT, Doppler radar indicated heavy rain due to\nthunderstorms. This  will cause urban and small stream flooding.\nBetween 1 and 2 inches of rain have fallen.\n- Additional rainfall amounts of 0.5 to 1 inch are expected over\nthe area. This additional rain will result in minor flooding.\n- Some locations that will experience flooding include...\nSt. Louis, Chesterfield, Wildwood, University City, Ballwin,\nKirkwood, Webster Groves, Manchester, Creve Coeur, Clayton,\nCrestwood, Town and Country and Eureka.\n\n## Instructions\nTurn around, don't drown when encountering flooded roads. Most flood\ndeaths occur in vehicles."}