Wildfire smoke from Canada and Minnesota is heading into the Northeast, prompting air quality warnings.

Heavy plumes of wildfire smoke are moving into the Northeast, impacting air quality across the region. Fueled by intense fires in northern Ontario and Minnesota, the smoke is expected to reach the Great Lakes and cities like Boston, New York, and Philadelphia through Wednesday. Authorities have issued air quality alerts due to the high concentration of pollutants. Residents, particularly the very young and those with pre-existing respiratory conditions, are advised to limit strenuous outdoor activity to reduce health risks. While some of the smoke remains trapped high in the atmosphere, localized mixing could bring the pollutant levels closer to the ground, potentially creating visibility issues and hazardous air conditions. The smoke is also altering the visible skies, casting milky or sepia tones and amplifying the reds and oranges of evening sunsets. Although the bulk of the smoke is predicted to remain aloft, forecasts warn that concentrated smoke near the ground could lead to air quality comparable to previous severe wildfire events. Public health officials urge residents to monitor local air quality reports.

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