Minor Dense Fog Advisory | Effective 08/26/2026 16:30

Headline: 
Dense Fog Advisory issued August 26 at 7:30PM EDT until August 27 at 2:00AM EDT by NWS Marquette MI
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
August 26, 2026 - 4:30pm
Expires: 
August 27, 2026 - 4:30am
Description: 
* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Small Craft Advisory, northwest winds 15 to 20 kt with gusts up to 25 kt and waves 2 to 5 ft expected. * WHERE...Munising to Grand Marais MI. * WHEN...For the Dense Fog Advisory, until 2 AM EDT Thursday. For the Small Craft Advisory, from midnight tonight to 2 PM EDT Thursday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.
Instruction: 
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. 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: 
Munising to Grand Marais MI
Forcast Office: 
NWS Marquette MI
Sender: 
w-nws.webmaster@noaa.gov