The sky over Winnipeg was among the smokiest in the country Friday morning, prompting warnings from Environment and Climate Change Canada to limit time outdoors.

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

Air quality specialists in the state are starting to more closely monitor wildfire activity in Canada. Because of climate change, those fires are becoming more intense and reaching areas closer to the Northeast,