{"url_path":"/weather/alerts/2.49.0.1.840.0.11efcadbf86b382cacf544b20d75a753474f0d04.002.1","section_key":"alert","section_title":"Small Craft Advisory issued September 18 at 11:32AM EDT until September 19 at 12:00PM EDT by NWS Boston/Norton MA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-09-18","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.11efcadbf86b382cacf544b20d75a753474f0d04.002.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Boston/Norton MA"},"word_count":98,"has_tables":false,"body_markdown":"# Small Craft Advisory: Small Craft Advisory issued September 18 at 11:32AM EDT until September 19 at 12:00PM EDT by NWS Boston/Norton MA\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Cape Cod Bay; Nantucket Sound\n**Issued by:** NWS Boston/Norton MA\n**Sent:** 2026-09-18T11:32:00-04:00\n**Effective:** 2026-09-18T11:32:00-04:00\n**Expires:** 2026-09-19T00:45:00-04:00\n\n## Description\n* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas\naround 3 feet expected.\n\n* WHERE...Cape Cod Bay and Nantucket Sound.\n\n* WHEN...From 11 PM this evening to noon EDT Saturday.\n\n* IMPACTS...Conditions will be hazardous to small craft.\n\n## Instructions\nInexperienced mariners, especially those operating smaller\nvessels, should avoid navigating in hazardous conditions."}