Why is the sky yellow over Boston? Canadian wildfire smoke will cause poor air quality on Wednesday in Massachusetts.

As wildfire smoke from Canadian forests blows into Central Indiana this week, expect to see hazy skies.

Wildfires in Canada are pouring thick clouds of smoke into the US and will usher in unhealthy air quality for millions of people in Northeast and Midwest.

Thick smoke from wildfires that are burning out of control in Canada will be drifting down to New Jersey, New York and other eastern states during the next few days and could push its way down to ground level,

Smoke from Canadian wildfires will blanket the skies of the Northeast through mid-week, and when paired with hot, humid conditions expected during that same time, it could make for difficult breathing conditions for some.

Fire officials are urging residents to take precautions due to a combination of heat, humidity, and wildfire smoke from Canada.

This smoke comes from a sudden flare-up of intense wildfire activity in far northern Minnesota and neighboring Ontario, Canada, where hot, dry and windy conditions sparked explosive fire growth. Thanks to a the jet stream pattern,

Smoke from woodland fires is impacting much of Northern and Northwestern Ontario. Northern Ontario communities are dealing with a mix of summer heat, wildfire smoke, gusty winds, and scattered shower or thunderstorm risks today.