Prod of western smoke makes its way into the Chicago area Friday afternoon

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Smoke will likely remain aloft and not pose any serious air quality threats at ground level. 

Late Thursday upper level smoke 

Forecast upper level smoke Friday afternoon 

From earthobservatory.nasa.gov:

In July 2024, wildland fires in Canada billowed smoke that drifted across North America. A stretch of extreme heat, coupled with windy conditions and thunderstorms, helped spur the ignition and expansion of fires in several Canadian provinces. As of July 24, 989 fires actively burned in Canada, with over half of those occurring in British Columbia or Alberta, according to the Canadian Interagency Forest Fire Centre.

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WGN-TV Tom Skilling Weather Center

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