Minor Dense Fog Advisory | Effective 07/27/2026 23:52

Headline: 
Dense Fog Advisory issued July 28 at 1:52AM CDT until July 28 at 11:00AM CDT by NWS Duluth MN
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
July 27, 2026 - 11:52pm
Expires: 
July 28, 2026 - 9:00am
Description: 
* WHAT...Dense fog will reduce visibility to 1/4 to 1/2 NM. * WHERE...Portions of Lake Superior. * WHEN...Until 11 AM CDT this morning. * 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; Grand Portage to Grand Marais MN; Grand Marais to Taconite Harbor MN; Taconite Harbor to Silver Bay Harbor MN; 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
Sender: 
w-nws.webmaster@noaa.gov