{"url_path":"/weather/alerts/2.49.0.1.840.0.a95611944d0068c8a709299df7704563b46cc4d6.001.1","section_key":"alert","section_title":"Dense Smoke Advisory issued July 16 at 10:06AM EDT until July 17 at 4:00AM EDT by NWS Detroit/Pontiac MI","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.a95611944d0068c8a709299df7704563b46cc4d6.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Detroit/Pontiac MI"},"word_count":190,"has_tables":false,"body_markdown":"# Dense Smoke Advisory: Dense Smoke Advisory issued July 16 at 10:06AM EDT until July 17 at 4:00AM EDT by NWS Detroit/Pontiac MI\n\n**Severity:** Minor\n**Certainty:** Likely\n**Urgency:** Expected\n**Areas:** Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt  to the US/Canadian border beyond 5 NM from shore; Lake Huron from Presque Isle Lt. to Sturgeon Point  MI 5NM off shore to US/Canadian border; Lake Huron from Sturgeon Point to Alabaster MI 5NM off shore to US/Canadian border\n**Issued by:** NWS Detroit/Pontiac MI\n**Sent:** 2026-07-16T10:06:00-04:00\n**Effective:** 2026-07-16T10:06:00-04:00\n**Expires:** 2026-07-17T04:00:00-04:00\n\n## Description\n* WHAT...Dense smoke will reduce visibility to 1 NM or less.\n\n* WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque\nIsle Lt beyond 5 NM off shore, Lake Huron from Presque Isle\nLight to Sturgeon Point MI beyond 5NM off shore and Lake Huron\nfrom Sturgeon Point to Alabaster MI beyond 5NM off shore.\n\n* WHEN...Smoke is dense this morning and may show modest\nimprovement this afternoon and tonight.\n\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."}