{"url_path":"/weather/alerts/2.49.0.1.840.0.b378177177b76d1f2d020c02b7cd53586211b7e6.001.1","section_key":"alert","section_title":"Dense Smoke Advisory issued July 15 at 3:41PM EDT until July 16 at 11:00AM EDT by NWS Marquette MI","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-15","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.b378177177b76d1f2d020c02b7cd53586211b7e6.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Marquette MI"},"word_count":191,"has_tables":false,"body_markdown":"# Dense Smoke Advisory: Dense Smoke Advisory issued July 15 at 3:41PM EDT until July 16 at 11:00AM EDT by NWS Marquette MI\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Saxon Harbor WI to Black River MI; Black River To Ontonagon MI; Ontonagon to Upper Entrance of Portage Canal MI; Upper Entrance of Portage Canal to Eagle River MI; Eagle River to Manitou Island MI; Manitou Island to Point Isabelle MI; Point Isabelle to Lower Entrance of Portage Canal MI; Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays; Huron Islands to Marquette MI; Marquette to Munising MI; Munising to Grand Marais MI; Grand Marais to Whitefish Point MI\n**Issued by:** NWS Marquette MI\n**Sent:** 2026-07-15T15:41:00-04:00\n**Effective:** 2026-07-15T15:41:00-04:00\n**Expires:** 2026-07-16T03:45:00-04:00\n\n## Description\n* WHAT...Dense smoke will reduce visibility to less than one\nnautical mile at times.\n\n* WHERE...Portions of Central, Eastern and Western Lake Superior.\n\n* WHEN...Until 11 AM EDT /10 AM CDT/ Thursday.\n\n* IMPACTS...Low visibility will make navigation difficult.\n\n## Instructions\nIf you must navigate, proceed with caution. Use proper fog\nsignals. Make sure all running lights are on. Remember to use\nyour radar and compass."}