{"url_path":"/weather/alerts/2.49.0.1.840.0.b5dcacde10c105a1d6a45d07f8c3d138523ea97f.001.1","section_key":"alert","section_title":"Small Craft Advisory issued May 18 at 3:49PM EDT until May 20 at 12:00AM EDT by NWS Gaylord MI","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.b5dcacde10c105a1d6a45d07f8c3d138523ea97f.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Gaylord MI"},"word_count":186,"has_tables":false,"body_markdown":"# Small Craft Advisory: Small Craft Advisory issued May 18 at 3:49PM EDT until May 20 at 12:00AM EDT by NWS Gaylord MI\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island; St Ignace to False Detour Channel; 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island; Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary; Sturgeon Pt to Alabaster MI\n**Issued by:** NWS Gaylord MI\n**Sent:** 2026-05-18T15:49:00-04:00\n**Effective:** 2026-05-18T15:49:00-04:00\n**Expires:** 2026-05-19T00:00:00-04:00\n\n## Description\n* WHAT...Highest gusts up to 30 kts from the southwest and\nhighest waves around 6 feet expected.\n\n* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge\nincluding Mackinac Island, St Ignace to False Detour Channel,\n5NM East of Mackinac Bridge to Presque Isle Light MI including\nBois Blanc Island, Presque Isle Light to Sturgeon Pt MI\nIncluding Thunder Bay National Marine Sanctuary and Sturgeon\nPt to Alabaster MI.\n\n* WHEN...From 8 AM Tuesday to midnight EDT Tuesday night.\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."}