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Dense Smoke Advisory: Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park; Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border

source: us-gov-api (us-gov-api:noaa-weather)published 2026-07-16 23:03ingested 2026-07-17 08:17

extract

Dense Smoke Advisory — Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park; Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border Severity: Minor. Certainty: Likely. * WHAT...Dense smoke will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 PM EDT /7 PM CDT/ Friday. * IMPACTS...Low visibility will make navigation difficult.

retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.