MINNEAPOLIS – Extreme wildfires burning in Canada and prompting evacuations are now impacting the U.S. , as weather systems will cause smoke to drift southward into areas of Minnesota and Wisconsin in the Upper Midwest late this week.

More than 160 wildfires across Canada have burned more than 1.6 million acres. Fast-moving fires across Saskatchewan and Manitoba triggered evacuations this week.

HOW IS AIR QUALITY MEASURED?

The fires in Manitoba prompted provincial officials to issue a state of emergency.

"This is the largest evacuation in many Manitobans’ living memory, and this will require significant resources and co-operation from all levels of government," Manitoba Premier Wab Kinew said. "I have spoken with the prime minister, and we have asked for the support of the Canadian Arm

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