{"url_path":"/weather/alerts/2.49.0.1.840.0.c6c5c8b11e50ed647acf6d0b7ada96f3f30f46d6.001.1","section_key":"alert","section_title":"Coastal Flood Advisory issued May 18 at 5:38PM EDT until May 19 at 12:00AM EDT by NWS Charleston SC","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.c6c5c8b11e50ed647acf6d0b7ada96f3f30f46d6.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Charleston SC"},"word_count":159,"has_tables":false,"body_markdown":"# Coastal Flood Advisory: Coastal Flood Advisory issued May 18 at 5:38PM EDT until May 19 at 12:00AM EDT by NWS Charleston SC\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Coastal Colleton; Charleston\n**Issued by:** NWS Charleston SC\n**Sent:** 2026-05-18T17:38:00-04:00\n**Effective:** 2026-05-18T17:38:00-04:00\n**Expires:** 2026-05-19T00:00:00-04:00\n\n## Description\n* WHAT...Up to one half foot of inundation above ground level\nexpected along shorelines and tidal waterways (7.0 to 7.2 feet\nMean Lower Low Water at Charleston).\n\n* WHERE...Coastal Colleton and Charleston Counties.\n\n* WHEN...From 9 PM this evening to midnight EDT tonight.\n\n* IMPACTS...This could result in some roads becoming impassable.\n\n* ADDITIONAL DETAILS...High tide will occur around 10:19 PM\ntoday at Charleston. Saltwater inundation will be possible 1\nto 2 hours before and after high tide.\n\n## Instructions\nIf travel is required, allow extra time as some roads may be\nclosed. Do not drive around barricades or through water of\nunknown depth. Take the necessary actions to protect flood-prone\nproperty.\n\nVisit water.weather.gov for additional water level and flood\nimpact information."}