By admin 
RALEIGH, N.C. (WNCN) — Folks in central North Carolina might have noticed a haze in the sky to the northeast Wednesday morning — and their eyes weren’t playing tricks on them.
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Smoke from Canadian wildfires has flowed south over much of the United States and the East Coast, creating a hazy look on the horizon.
The smoke is from more than 830 active wildfires across all provinces of Canada, including wildfires that have burned more than 2.5 million acres since July 1, according to the country’s Natural Resources Department,
But despite being thousands of miles from the wildfires, the smoke continues to travel south.
The upper-level wind flow is driving the direction of the smoke, and the prevailing flow is from northwest to southeast, bringing the hazy conditions into the United States, including here in central North Carolina.
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For now, smoke is concentrated higher in the sky, thanks to our ridge of high pressure. But by the end of the week, the smoke will translate down into the lower levels, closer to the surface as the ridge starts to break down and move away.
This will allow more smoke to take over the skies.
This could lower air quality for those sensitive to particulate matter in the air, and for Wednesday through Friday, the North Carolina Department of Environmental Quality has designated a Moderate Air Quality Index.
The Moderate index is for about two-thirds of the state, excluding the western areas.
The index means that there may be a moderate health concern for people who are unusually sensitive to air pollution, according to the N.C. Department of Environmental Quality.
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“Consider limiting prolonged or heavy exertion outdoors,” officials said.