Canadian, Minnesota wildfire smoke to blanket Northeast, Mid-Atlantic

Smoke from wildfires in Minnesota and Ontario, Canada, is causing unhealthy air quality across the U.S. Northeast and Mid-Atlantic. The smoke, combined with extreme heat, poses health risks, particularly for those with respiratory or heart conditions. Wildfires in Ontario include one larger than 130,000 acres, while two Minnesota fires each cover over 13,500 acres.