{"url_path":"/weather/alerts/2.49.0.1.840.0.442a2606827856508249973f03197e136c4d209d.001.1","section_key":"alert","section_title":"Small Craft Advisory issued July 21 at 2:31PM EDT until July 22 at 8:00PM EDT by NWS Boston/Norton MA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-21","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.442a2606827856508249973f03197e136c4d209d.001.1","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":213,"has_tables":false,"body_markdown":"# Small Craft Advisory: Small Craft Advisory issued July 21 at 2:31PM EDT until July 22 at 8:00PM EDT by NWS Boston/Norton MA\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM; Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket; Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island\n**Issued by:** NWS Boston/Norton MA\n**Sent:** 2026-07-21T14:31:00-04:00\n**Effective:** 2026-07-21T14:31:00-04:00\n**Expires:** 2026-07-22T03:45:00-04:00\n\n## Description\n* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas\n6 to 9 feet expected.\n\n* WHERE...In Massachusetts coastal waters, Coastal waters east\nof Ipswich Bay and the Stellwagen Bank National Marine\nSanctuary, Coastal waters from Provincetown MA to Chatham MA\nto Nantucket MA out 20 NM and Coastal Waters extending out to\n25 NM South of Marthas Vineyard and Nantucket. In Rhode Island\ncoastal waters, Coastal Waters from Montauk NY to Marthas\nVineyard extending out to 20 NM South of Block Island.\n\n* WHEN...From 8 PM this evening to 8 PM EDT Wednesday.\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."}