Heavy ground-level smoke from wildfires in central Canada moved into Minnesota behind a line of thunderstorms on Friday, July 11, 2025, prompting an air quality alert.
Heavy ground-level smoke from wildfires in central Canada has moved into Minnesota behind a line of thunderstorms on Friday, July 11, prompting an air quality alert.

The alert began Friday morning, with the air quality index expected to peak at the purple level, meaning the air would be very unhealthy for everyone.

The first band of smoke impacted Northern Minnesota Friday as it moved east during the day. Air quality will worsen across northeast Minnesota Friday evening as smoke arrives over the region.

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