Minor Dense Fog Advisory | Effective 09/17/2026 09:47

Headline: 
Dense Fog Advisory issued September 17 at 11:47AM CDT until September 17 at 3:00PM CDT by NWS Milwaukee/Sullivan WI
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
September 17, 2026 - 9:47am
Expires: 
September 17, 2026 - 1:00pm
Description: 
* WHAT...Dense fog will reduce visibility to 1 mile or less. * WHERE...Nearshore Waters from Port Washington to Winthrop Harbor IL. * WHEN...Until 3 PM CDT this afternoon. * 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: 
Port Washington to North Point Light WI; North Point Light to Wind Point WI; Wind Point WI to Winthrop Harbor IL
Forcast Office: 
NWS Milwaukee/Sullivan WI
Sender: 
w-nws.webmaster@noaa.gov