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Dense Fog Advisory

Status

New Event Active alert

Start Time

Fri 08/07/2026 04:00 AM EDT

End Time

Fri 08/07/2026 09:00 AM EDT

Significance

Advisory

Impacts

Low impact

Locations Affected

Joliet, IL ∙ Hammond, IN ∙ Bolingbrook, IL ∙ Gary, IN ∙ Tinley Park, IL ∙ Orland Park, IL ∙ Lowell, IN ∙ Lakes of the Four Seasons, IN ∙ Tefft, IN ∙ Cullom, IL

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Chicago IL 246 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT /9 AM EDT/ THIS MORNING... * WHAT...Areas of dense fog with visibility less than a half mile. * WHERE...Portions of central, east central, and northeast Illinois and northwest Indiana. * WHEN...Until 8 AM CDT /9 AM EDT/ this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Technical Header

ILZ021-023-032-033-039-105>108-INZ001-002-010-011-019-071300- /O.NEW.KLOT.FG.Y.0012.260807T0800Z-260807T1300Z/ Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Cook-Northern Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper- Benton- Including the cities of Minooka, Park Forest, Gary, Manhattan, Lemont, Morocco, Coal City, Plainfield, Gibson City, Dwight, Fairbury, Oak Forest, Beecher, Pontiac, Fowler, Roselawn, Peotone, Morris, Kankakee, Merrillville, Channahon, Joliet, Valparaiso, Bolingbrook, Gilman, Hammond, Portage, Calumet City, DeMotte, Chesterton, Oxford, Rensselaer, Wilmington, Paxton, Orland Park, Bourbonnais, Crete, Bradley, Watseka, Mokena, and Kentland 246 AM CDT Fri Aug 7 2026 /346 AM EDT Fri Aug 7 2026/