{"url_path":"/weather/alerts/2.49.0.1.840.0.193b7c292302f4bcfe2b0778e2a4305f8afd6ddf.001.1","section_key":"alert","section_title":"Flood Watch issued September 19 at 3:57PM CDT until September 20 at 7:00AM CDT by NWS Chicago IL","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-09-19","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.193b7c292302f4bcfe2b0778e2a4305f8afd6ddf.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Chicago IL"},"word_count":237,"has_tables":false,"body_markdown":"# Flood Watch: Flood Watch issued September 19 at 3:57PM CDT until September 20 at 7:00AM CDT by NWS Chicago IL\n\n**Severity:** Severe\n**Certainty:** Possible\n**Urgency:** Future\n**Areas:** Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; Kendall; Northern Cook; Central Cook; Southern Cook; Northern Will; Lake; Porter\n**Issued by:** NWS Chicago IL\n**Sent:** 2026-09-19T15:57:00-05:00\n**Effective:** 2026-09-19T15:57:00-05:00\n**Expires:** 2026-09-20T00:00:00-05:00\n\n## Description\n* WHAT...Flash flooding caused by excessive rainfall continues to be\npossible.\n\n* WHERE...Portions of Illinois, including the following areas, Boone,\nCentral Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee,\nMcHenry, Northern Cook, Northern Will, Ogle, Southern Cook and\nWinnebago and northwest Indiana, including the following areas,\nLake IN and Porter.\n\n* WHEN...Through early Sunday morning.\n\n* IMPACTS...Creeks and streams may rise out of their banks. Flooding\nmay occur in poor drainage and urban areas. Roads and streets may\nbe flooded.\n\n* ADDITIONAL DETAILS...\n- Showers and thunderstorms, some with torrential rainfall with\nhourly rates around 2 inches per hour, are expected to redevelop\nacross the watch area this evening and overnight. Repeated rounds\nof heavy rainfall may result in areas of flash flooding and rapid\nrises on area rivers.\n- http://www.weather.gov/safety/flood\n\n## Instructions\nA Flood Watch for flash flooding means rapid-onset flooding is\npossible, but not yet certain, based upon the latest forecasts. Flash\nflooding is a dangerous situation. Persons with interests along area\nrivers, creeks, and other waterways should monitor the latest\nforecasts and be prepared to take action should flooding develop."}