{"url_path":"/weather/alerts/2.49.0.1.840.0.acd3cbfc39ba8590f63fe040373937e55fd2a344.001.1","section_key":"alert","section_title":"Dense Smoke Advisory issued July 15 at 10:10AM CDT until July 16 at 4:00PM CDT by NWS Duluth MN","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.acd3cbfc39ba8590f63fe040373937e55fd2a344.001.1","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":139,"has_tables":false,"body_markdown":"# Dense Smoke Advisory: Dense Smoke Advisory issued July 15 at 10:10AM CDT until July 16 at 4:00PM 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; Two Harbors to Duluth MN; Duluth MN to Port Wing WI; 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:** 2026-07-15T10:10:00-05:00\n**Effective:** 2026-07-15T10:10:00-05:00\n**Expires:** 2026-07-15T22:15:00-05:00\n\n## Description\n* WHAT...Dense smoke will reduce visibility to 4 to 5 NM.\n\n* WHERE...Portions of Lake Superior.\n\n* WHEN...Until 4 PM 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."}