Story perspectives
Canadian Wildfire Haze Forces Midwest, Northeast Indoors
7/17/2026
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Story summary
- A thick orange haze from Canadian wildfires forced millions of people in the Midwest and Northeast to stay indoors.
- Smoke spread across Ontario into the Midwestern and Northeastern United States, creating hazardous air quality.
- Air-quality monitors in Chicago, Cleveland, Detroit, Minneapolis and Toronto recorded unhealthy to dangerous levels on Thursday.
- Parks, ball fields, beaches and pools were closed as visibility dropped and residents limited outdoor time.
