Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.  Air quality alerts were in effect Tuesday in several states, including Michigan and New York.

The wildfire areas of Manitoba and Saskatchewan are projected to receive 50 millimeters to 100 millimeters of rain this weekend into early next week. That amount of rain converts to two inches to four inches of rain. Two to four inches of rain will do a lot to extinguish a wildfire.