Dense Fog Advisory - Minor | Effective 06/10/2026 06:29

Headline: 
Dense Fog Advisory issued June 10 at 9:29AM EDT until June 11 at 8:00AM EDT by NWS Marquette MI
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
June 10, 2026 - 6:29am
Expires: 
June 10, 2026 - 6:30pm
Description: 
* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 AM EDT /7 AM CDT/ Thursday. * IMPACTS...Low visibility will make navigation difficult.
Instruction: 
If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.
Area Description: 
Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Saxon Harbor WI to Black River MI; 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
Forcast Office: 
NWS Marquette MI
Sender: 
w-nws.webmaster@noaa.gov