Minnesota, Wisconsin Dense Fog Advisory | Effective 05/18/2026 16:56

Headline: 
Dense Fog Advisory issued May 18 at 6:56PM CDT until May 18 at 10:00PM CDT by NWS Duluth MN
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
May 18, 2026 - 4:56pm
Expires: 
May 18, 2026 - 8:00pm
Description: 
* WHAT...Visibility less than one quarter of a mile in dense fog. * WHERE...In Minnesota, Carlton and South St. Louis Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Fond du Lac Band. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Localized in nature and it may not last long as incoming storms should help to mix it out.
Instruction: 
If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
Area Description: 
Carlton/South St. Louis; Douglas
Forcast Office: 
NWS Duluth MN