JUDSON JONES and MARK WALKER / NEW YORK TIMES – From the windows of office buildings across Manhattan, the blue sky turned hazy on Tuesday as wildfire smoke from Canada and the Great Lakes slipped across the Northeast, prompting alerts in some places about poor air quality.

The haze is expected to continue on Wednesday, and even to worsen in some places, as the same heat dome that is pushing temperatures close to 100 degrees across much of eastern Canada and the United States traps the smoke from faraway wildfires close to the ground …