Headline:
Dense Fog Advisory issued July 4 at 9:48PM CDT until July 5 at 9:00AM CDT by NWS Chicago IL
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
July 4, 2026 - 7:48pm
Expires:
July 5, 2026 - 4:00am
Description:
* WHAT...Dense fog will reduce visibility to one quarter mile or
less.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...Until 9 AM CDT Sunday.
* 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:
Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL
Forcast Office:
NWS Chicago IL
Sender: