Wildfire smoke from Canada and northern Minnesota creates hazardous air quality for over 100 million people across the Midwest and East Coast.

Thick plumes of smoke from wildfires in Canada and northern Minnesota have created hazardous air quality for more than 100 million people across 18 states and the District of Columbia. The smoke, driven by a combination of heat and shifting winds, has caused "very unhealthy" conditions from northeast Minnesota to southeast Virginia. In many areas, the haze has been so dense that it obscured landmarks in Washington, D.C., and forced the Cleveland Guardians to postpone a baseball game against the Pittsburgh Pirates. The administration announced that the smoke is expected to persist through at least Saturday, with potential relief arriving via thunderstorms in the Northeast and Mid-Atlantic. Public health officials are urging residents, particularly children and the elderly, to limit outdoor activities and wear N95 or KN95 masks. In Philadelphia, the Federal Aviation Administration implemented a ground delay program to manage over 200 flight delays caused by reduced visibility. While some regions are seeing slight improvements, the smoke remains a significant factor for the weekend.

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