Minor Dense Smoke Advisory | Effective 07/16/2026 22:57

Headline: 
Dense Smoke Advisory issued July 17 at 12:57AM CDT until July 17 at 7:00PM CDT by NWS Duluth MN
Event: 
Dense Smoke Advisory
Urgency: 
Expected
Effective: 
July 16, 2026 - 10:57pm
Expires: 
July 17, 2026 - 5:00pm
Description: 
* WHAT...Dense smoke will reduce visibility to less than 1 NM. * WHERE...Portions of Lake Superior. * WHEN...Until 7 PM CDT this evening. * 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: 
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
Forcast Office: 
NWS Duluth MN