{"url_path":"/weather/alerts/2.49.0.1.840.0.a46d8096654821fe3c1847c91b346051d487b03c.001.1","section_key":"alert","section_title":"Flood Advisory issued September 17 at 4:53PM CDT until September 17 at 6:45PM CDT by NWS St Louis MO","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-09-17","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a46d8096654821fe3c1847c91b346051d487b03c.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":154,"has_tables":false,"body_markdown":"# Flood Advisory: Flood Advisory issued September 17 at 4:53PM CDT until September 17 at 6:45PM CDT by NWS St Louis MO\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** St. Charles, MO\n**Issued by:** NWS St Louis MO\n**Sent:** 2026-09-17T16:53:00-05:00\n**Effective:** 2026-09-17T16:53:00-05:00\n**Expires:** 2026-09-17T18:45:00-05:00\n\n## Description\n* WHAT...Urban area and small stream flooding caused by excessive\nrainfall continues.\n\n* WHERE...Northwestern Saint Charles County in east central\nMissouri...\n\n* WHEN...Until 645 PM CDT.\n\n* IMPACTS...Minor flooding in low-lying and poor drainage areas.\n\n* ADDITIONAL DETAILS...\n- At 451 PM CDT, Doppler radar indicated that the heavy rain had\nended. However, radar estimates that between 1 and 3 inches of\nrain has fallen. Therefore the threat for urban and small stream\nflooding will continue due to the runoff.\n- Some locations that will experience flooding include...\nO'Fallon, St. Charles, St. Peters, Wentzville, Lake St. Louis,\nSt. Paul, Josephville and Kampville.\n\n## Instructions\nTurn around, don't drown when encountering flooded roads. Most flood\ndeaths occur in vehicles."}