{"url_path":"/weather/alerts/2.49.0.1.840.0.e9b9c0ee439931423c0c37a84f1b79741ec31414.001.2","section_key":"alert","section_title":"Tropical Storm Warning issued July 21 at 4:19PM CDT by NWS New Orleans LA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-21","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.e9b9c0ee439931423c0c37a84f1b79741ec31414.001.2","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS New Orleans LA"},"word_count":169,"has_tables":false,"body_markdown":"# Tropical Storm Warning: Tropical Storm Warning issued July 21 at 4:19PM CDT by NWS New Orleans LA\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Immediate\n**Areas:** Lake Pontchartrain; Lake Salvador and Lake Cataouatche; Terrebonne Bay; Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM\n**Issued by:** NWS New Orleans LA\n**Sent:** 2026-07-21T16:19:00-05:00\n**Effective:** 2026-07-21T16:19:00-05:00\n**Expires:** 2026-07-22T06:30:00-05:00\n\n## Description\n* WHAT...Southwest winds 25 to 35 kt with gusts up to 55 kt and\nseas 7 to 10 ft.\n\n* WHERE...Lake Pontchartrain, Lake Salvador and Lake Cataouatche,\nTerrebonne Bay, Coastal Waters from Port Fourchon LA to Lower\nAtchafalaya River LA out 20 to 60 Nautical Miles.\n\n* WHEN...Tropical Storm force winds possible from Wednesday\nafternoon until early Thursday morning.\n\n* IMPACTS...Tropical storm force winds and hazardous seas will\ncapsize or damage vessels and reduce visibility.\n\n## Instructions\nMariners should alter plans to avoid these hazardous conditions.\nRemain in port, seek safe harbor, alter course, and/or secure the\nvessel for hazardous conditions."}