Canadian wildfire smoke descends on US, spreading from Great Lakes to New England
Summary
Over 830 wildfires are burning across Canada, especially in west-central Ontario. Smoke from these fires is blowing into the United States, creating poor air quality from the Great Lakes area to New England, affecting millions of people.Key Facts
- More than 830 wildfires are active in Canada as of July 15, 2026.
- Fires are also burning in northern Minnesota near the U.S.-Canada border.
- The largest fires are in west-central Ontario, burning thick forests.
- Smoke is carried by wind into the upper Midwest and Northeast U.S.
- Cities affected include Duluth, Marquette, Green Bay, Milwaukee, Detroit, Buffalo, New York City, Philadelphia, and Boston.
- Air quality alerts are in effect from Minnesota to New York City, covering whole states like Wisconsin and Michigan.
- Smoke will continue through the week but rain is expected to help clear it starting Friday in the Midwest and Saturday in the Northeast.
- The smoke could reach dangerous levels, affecting everyone, not just people with breathing problems.
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