Headline:
Dense Fog Advisory issued May 23 at 4:37PM CDT until May 23 at 10:00PM CDT by NWS Chicago IL
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
May 23, 2026 - 2:37pm
Expires:
May 23, 2026 - 8:00pm
Description:
* WHAT...Dense fog will reduce visibility to under 1/2 mile at
times this evening.
* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.
* WHEN...Until 10 PM CDT this evening.
* 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; Calumet Harbor IL to Gary IN; Gary to Burns Harbor IN; Burns Harbor to Michigan City IN
Forcast Office:
NWS Chicago IL