{"url_path":"/weather/alerts/2.49.0.1.840.0.4d21480bf0b7bed4c7538844eaa7f7e4abd95552.003.1","section_key":"alert","section_title":"Dense Smoke Advisory issued July 16 at 3:02PM CDT until July 17 at 10:00AM CDT by NWS Duluth MN","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-16","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.4d21480bf0b7bed4c7538844eaa7f7e4abd95552.003.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Duluth MN"},"word_count":128,"has_tables":false,"body_markdown":"# Dense Smoke Advisory: Dense Smoke Advisory issued July 16 at 3:02PM CDT until July 17 at 10:00AM CDT by NWS Duluth MN\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Chequamegon Bay-Bayfield to Oak Point WI; Silver Bay Harbor to Two Harbors MN; Port Wing to Sand Island WI; Sand Island to Bayfield WI; Oak Point to Saxon Harbor WI; Outer Apostle Islands Beyond 5 NM from Mainland\n**Issued by:** NWS Duluth MN\n**Sent:** 2026-07-16T15:02:00-05:00\n**Effective:** 2026-07-16T15:02:00-05:00\n**Expires:** 2026-07-17T03:15:00-05:00\n\n## Description\n* WHAT...Dense smoke will reduce visibility to less than 1 NM.\n\n* WHERE...Portions of Lake Superior.\n\n* WHEN...Until 10 AM CDT Friday.\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."}