{"url_path":"/weather/alerts/2.49.0.1.840.0.d8773e067b0e84c1b1285318ba03a8cc80cfee04.001.1","section_key":"alert","section_title":"Special Marine Warning issued July 21 at 5:26PM EDT until July 21 at 7:30PM EDT by NWS Baltimore MD/Washington DC","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.d8773e067b0e84c1b1285318ba03a8cc80cfee04.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Baltimore MD/Washington DC"},"word_count":210,"has_tables":false,"body_markdown":"# Special Marine Warning: Special Marine Warning issued July 21 at 5:26PM EDT until July 21 at 7:30PM EDT by NWS Baltimore MD/Washington DC\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Immediate\n**Areas:** Chesapeake Bay north of Pooles Island MD; Chesapeake Bay from Pooles Island to Sandy Point MD; Patapsco River including Baltimore Harbor\n**Issued by:** NWS Baltimore MD/Washington DC\n**Sent:** 2026-07-21T17:26:00-04:00\n**Effective:** 2026-07-21T17:26:00-04:00\n**Expires:** 2026-07-21T19:30:00-04:00\n\n## Description\nSMWLWX\n\nThe National Weather Service in Sterling Virginia has issued a\n\n* Special Marine Warning for...\nChesapeake Bay from Pooles Island to Sandy Point MD...\nChesapeake Bay north of Pooles Island MD...\nPatapsco River including Baltimore Harbor...\n\n* Until 730 PM EDT.\n\n* At 526 PM EDT, strong thunderstorms and a gust front were located\nalong a line extending from 12 nm west of Fort Smallwood State\nPark to near Gibson Island to near Chester River to 6 nm east of\nKent Narrows Bridge, moving east at 45 knots.\n\nHAZARD...Wind gusts 34 knots or greater.\n\nSOURCE...Radar indicated.\n\nIMPACT...Boaters in small craft could be thrown overboard by\nsuddenly higher winds and waves capsizing their vessel.\n\n* Locations impacted include...\nFort Smallwood State Park, Turkey Point, North Point State Park,\nHart Miller Island, Tolchester Beach, Worton Point, Pooles Island,\nSpesutie Island, Gunpowder River, Northeast River, Sevenfoot Knoll,\nBodkin Point, Havre De Grace, and Aberdeen Proving Ground."}