Headline:
Dense Fog Advisory issued June 9 at 9:28PM CDT until June 10 at 7:00AM CDT by NWS Chicago IL
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
June 9, 2026 - 7:28pm
Expires:
June 10, 2026 - 3:30am
Description:
* WHAT...For the Dense Fog Advisory, dense fog will reduce
visibility to one quarter mile or less. For the Small Craft
Advisory, southwest winds to 25 kt expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...For the Dense Fog Advisory, until 7 AM CDT Wednesday.
For the Small Craft Advisory, from 2 PM to 9 PM CDT Wednesday.
* 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:
Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov